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USGS Publications in 1968

Amos, Dewey H., 1968, Preliminary map showing faults in the Blackford quadrangle, western Kentucky: Open-File Report 68-1, 1 map,
Anders, Robert B., 1968, Reconnaissance of the water resources of the central Guanajibo Valley, Cabo Rojo, Puerto Rico: U.S. Geological Survey], Open-File Report 68-2, 16 p. ill., maps (3 folded) ;28 cm.,
Barclay, C. S. Venable, 1968, Geology of the Gore Canyon-Kremmling area, Grand County, Colorado: U.S. Geological Survey], Open-File Report 68-3, 187 p. ill., maps (some col.) ;29 cm.,
Barnes, David F., 1968, Alaskan gravity base station network: U.S. Geological Survey, Open-File Report 68-4, 1 v. (various pagings) :chiefly ill., map ;27 cm.,
Barnes, H. H., Jr.; Meyer, F. W.; Hartwell, J. H., 1968, Some hydrologic effects of canal 111 near Homestead, Florida: U.S. Dept. of the Interior, Geological Survey, Open-File Report 68-5, 28 p. :ill., maps ;28 cm.,
Barnwell, W. W.; George, R. S., 1968, Progress report, 1966-1967: Water study, Greater Anchorage Area, Alaska: The Division Open-File Report 68-6, 39 p. :maps (some folded) ;28 cm.,
Basler, J. A.; Alary, L. J., 1968, Quality of the shallow ground water in the Rincon and Mesilla Valleys, New Mexico and Texas: Open-File Report 68-7, 30 p.,
Bennett, J. P., 1968, Turbulence measurement with a propeller flow meter: U.S. Geological Survey, Open-File Report 68-8, xv, 171 p. :ill. ;28 cm.,
Berkstresser, C. F., Jr., 1968, Data for springs in the southern coast, Transverse, and Peninsular Ranges, of California: Open-File Report 68-10, 104 p.; 1 fig.,
Berkstresser, Charles F., Jr., 1968, Data for springs in the northern coast ranges and Klamath Mountains of California: Open-File Report 68-9, iv, 49 p. : map ; 27 cm.,
Blacet, Philip M., 1968, Geologic map of the SE 1/4 Mount Union quadrangle, Yavapai County, Arizona: Open-File Report 68-12, 1 map.,
Blodgett, J. C.; Bertoldi, G. L., 1968, Determination of channel capacity of the Merced River downstream from Merced Falls Dam, Merced County, California: Open-File Report 68-13, 39 p.; 57 figs.,
Boggess, D. H., 1968, A test of flushing procedures to control salt-water intrusion at the W. P. Franklin Dam near Ft. Myers, Florida: Open-File Report 68-14, 28 p.; 7 figs.,
Borcherdt, C. A.; Roller, John C., 1968, Preliminary interpretation of a seismic-refraction profile across the Large Aperture Seismic Array, Montana: U.S. Dept. of the Interior, Geological Survey, National Center for Earthquake Research, Open-File Report 68-15, 53 p. ill. ;28 cm.,
Boswell, E. H., 1968, Water resources of east-central Mississippi-Clarke, Jasper, Laurderdale, Newton, Scott, and Smith Counties: Open-File Report 68-16, 16 p., 4 figs.,
Bowers, William E., 1968, Preliminary geologic map of the Griffin Point quadrangle, Garfield County, Utah: Open-File Report 68-17, 1 map.,
Bowers, William E., 1968, Preliminary geologic map of the Upper Valley quadrangle, Garfield County, Utah: Open-File Report 68-18, 1 map.,
Braithwaite, J., 1968, Dispersive multispectral scanning; a feasibility study: U.S. Geological Survey, Open-File Report 68-19, 57 p. ill. ;30 cm.,
Brethauer, G. E., 1968, Application of dislocation theory to analysis of vertical displacements at the ground surface caused by the Duryea event: Geological Survey (U.S.) Open-File Report 68-20, 24 p.,
Brethauer, G. E., 1968, Calculation of cavity radius using an average potential energy function: U.S. Geological Survey], Open-File Report 68-21, 20 p. ill. ;29 cm.,
Bromery, Randolph Wilson, 1968, Feasibility study for an airborne geophysical survey of the Republic of Liberia: U.S. Geological Survey], Open-File Report 68-22, 23 p. ;27 cm.,
Brosge, W. P.; Brabb, E. E.; King, E. R., 1968, Geologic interpretation of reconnaissance aeromagnetic survey of northeastern Alaska: Open-File Report 68-23, 2 maps, 1 profile,
Brown, D. L., 1968, Memorandum report on test drilling at Norfolk, Virginia: Open-File Report 68-25, 32 p., 1 fig.,
Brown, D. W., 1968, Preliminary ground-water availability map of Kidder County, North Dakota: Open-File Report 68-26, 1 map,
Brown, Glen F., 1968, Report on allanite occurrence near Hamdtha on Wadi Tathlith. Saudi Arabia: U.S. Geological Survey, Open-File Report 68-27, 2 p. ill. ;28 cm.,
Brown, Robert D., Jr., 1968, Map showing recently active breaks along the San Andreas and related faults between the northern Gabilan Range and Cholame Valley, California: Open-File Report 68-28, 1 map :col. ;190 x 168 cm. on sheet 75 x 131 cm. folded in envelope 30 x 24 cm.,
Bue, Conrad D., 1968, Monthly surface-water inflow to Chesapeake Bay: Open-File Report 68-29, 45 p., 7 figs.,
Byers, F. M., Jr.; Orkild, P. P.; Carr, W. J.; Quinlivan, W. D., 1968, Timber Mountain Tuff, southern Nevada, and its relation to cauldron subsidence: U.S. Geological Survey], Open-File Report 68-30, 23 p. ill., maps ;29 cm.,
Callahan, J. T., 1968, Preliminary report on the ground-water resources of the Anyang Chon Basin, Korea, 1967: Open-File Report 68-31, 67 p., 29 figs.,
Cashion, W. B., 1968, Maps showing structure, overburden, and thickness for a rich oil-shale sequence in the Eocene Green River Formation, east-central Uinta Basin, Utah and Colorado: Open-File Report 68-33, 1 sheet; 4 maps,
Cederstrom, Dagfin John, 1968, Geology and ground water resources of the middle peninsula, Virginia: Open-File Report 69-37, 231 leaves : ill., maps ; 28 cm.,
Christiansen, Robert L., 1968, A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau: U.S. Geological Survey, Open-File Report 68-34, 5 p. ill. ;27 cm.,
Clark, Allen L.; Hawley, C. C., 1968, Reconnaissance geology, mineral occurrences, and geochemical anomalies of the Yentna district, Alaska: U.S. Geological Survey], Open-File Report 68-35, 86 p. ill., maps ;27 cm.,
Clark, Russell Gould, Jr., 1968, Petrography and petrology of the Middlefield Granite: U.S. Geological Survey], Open-File Report 68-36, 52 p. ill., maps ;29 cm.,
Coats, R. R., 1968, Geologic map and schematic cross section of the Circle Creek rhyolite lekolith, Elko County, Nevada: Open-File Report 68-342, 1 map ;32 x 34 cm., on sheet 49 x 53 cm.,
Coats, R. R., 1968, Preliminary geologic map of the southwestern part of the Mountain City quadrangle, Elko County, Nevada: Open-File Report 68-38, 1 map + 1 explanation sheet,
Coats, Robert R., 1968, Preliminary geologic map of the Owyhee quadrangle, Nevada-Idaho: Open-File Report 68-37, 1 map + 1 explanation sheet,
Colton, Roger B., 1968, Bibliography of geology and geography of Ecuador: U.S. Geological Survey, Open-File Report 68-62, 65 p. ;27 cm.,
Colton, Roger B.; Mallory, Michael J., 1968, Map showing location of sand, gravel, and till pits in Ellington quadrangle, Connecticut: U.S. Geological Survey], Open-File Report 69-56, 52 p. ill., folded map ;28 cm.,
Colton, Roger B.; Mallory, Michael J., 1968, Map showing location of sand, gravel, and till pits and quarries in the Hampden quadrangle, Massachusetts-Connecticut: U.S. Geological Survey], Open-File Report 69-57, 53 p. ill., folded map ;29 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Ambler River quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-39, 3 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Baird Mountains quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-40, 2 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-41, 3 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Craig quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-42, 8 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Dixon Entrance quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-43, 2 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Hughes quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-44, 3 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Iditarod quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-45, 5 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Juneau quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-46, 7 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Ketchikan quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-47, 4 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the McGrath quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-48, 3 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Medfra quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-49, 3 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Mount Fairweather quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-50, 6 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-51, 12 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Ophir quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-52, 3 p. ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Petersburg quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-53, 3 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Port Alexander quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-54, 2 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Ruby quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-55, 5 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Shungnak quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-56, 3 p. :maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Sitka quadrangle: U.S. Geological Survey], Open-File Report 68-57, 5 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Skagway quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-58, 3 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of the Sumdum quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-59, 2 p. :2 maps ;27 cm.,
Compiled by Cobb, Edward Huntington, 1968, Metallic mineral resources map of nine Alaska quadrangles (Holy Cross, Kotzebue, Melozitna, Norton Bay, Nulato, Prince Rupert, Survey Pass, Taku River, Unalakleet): U.S. Geological Survey], Open-File Report 68-60, 16 p. ill., maps ;27 cm.,
Compiled by Cobb, Edward Huntington; Sainsbury, C. L., 1968, Metallic mineral resources map of the Teller quadrangle, Alaska: U.S. Geological Survey], Open-File Report 68-61, 8 p. :maps ;27 cm.,
compiled by Honea, Robert B.; Prentice, Virginia L., 1968, Selected bibliography of remote sensing: s.n., Open-File Report 68-137, 34 p. ;28 cm.,
compiled by Kruger, C. L., 1968, Aeromagnetic map of the McNair-Grand Portage area, northeastern Minnesota: Open-File Report 68-287, 1 map,
compiled by Long, C. L., 1968, Aeromagnetic map of the Battle Mountain and Dunphy quadrangles, Lander and Eureka Counties, Nevada.: Open-File Report 68-283, 1 map,
compiled by Long, C. L.; Marcellus, B. D., 1968, Aeromagnetic map of parts of the Golconda and Battle Mountain quadrangles, Humboldt, Lander, and Eureka Counties, Nevada: Open-File Report 68-285, 1 map,
compiled by Marcellus, B. D.; Petrafeso, F. A., 1968, Aeromagnetic map of the Eureka region, Eureka and White Pine Counties, Nevada: Open-File Report 68-284, 1 map,
compiled by Marcellus, B. D.; Petty, A. J., 1968, Aeromagnetic map of the Austin region, Lander County, Nevada.: Open-File Report 68-282, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of part of the Jarbidge quadrangle, Elko County, Nevada: Open-File Report 68-286, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the Midas quadrangle, Elko County, Nevada: Open-File Report 68-288, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the North Fork quadrangle, Elko County, Nevada: Open-File Report 68-289, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the southern part of the Norths Ranch quadrangle, Humboldt County, Nevada: Open-File Report 68-290, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the Tuscarora quadrangle, Elko County, Nevada: Open-File Report 68-291, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the Wild Horse, Mount Velma, Mountain City, and Rowland quadrangles, Elko County, Nevada: Open-File Report 68-293, 1 map,
compiled by Petrafeso, F. A.; Long, C. L., 1968, Aeromagnetic map of the Wilson Reservoir, Bull Run, and Owyhee quadrangles and part of the Hat Peak quadrangle, Elko County, Nevada: Open-File Report 68-294, 1 map,
compiled by White, Walter S., 1968, Generalized geologic map of the northern Appalachian region: Open-File Report 68-323, 1 map,
Cooper, James B., 1968, Ground-water exploration in the Bosque del Apache Grant, Socorro County, New Mexico: Open-File Report 68-63, 79 leaves : ill., maps ; 30 cm.,
Cooper, John Roberts, 1968, Ektachrome and ektachrome infrared photography of the Twin Buttes area, Arizona: U.S. Geological Survey], Open-File Report 68-64, 7 p. ill. ;29 cm.,
Corchary, George Sutter, 1968, Lithologic logs of six exploratory holes (UCe-9, -10, -11, -12a, -13, and -14) drilled in alluvium in central Nevada: U.S. Geological Survey], Open-File Report 68-65, 19 p. ill., maps ;27 cm.,
Cory, R. L.; Nauman, J. W., 1968, Temperature and water-quality conditions of the Patuxent River estuary, Maryland, January 1966 through December 1967: Open-File Report 68-66, 70 p., 11 figs.,
Croft, Mark G.; Gordon, G. V., 1968, Geology, hydrology, and quality of water in the Hanford-Visalia area, San Joaquin Valley, California: Open-File Report 68-67, v, 63 p. : ill., maps ; 28 cm.,
Davis, Leon Virgil; Busch, Fred E., 1968, Summary of hydrologic investigations by the United States Geological Survey at White Sands Missile Range, New Mexico: Open-File Report 68-70, 299 leaves : ill., maps ; 30 cm.,
Davis, W. E.; Kinoshita, Willie Tomoni., 1968, Principal facts for gravity stations in northeastern Washington: U.S. Geological Survey], Open-File Report 68-71, 14 p. ill. ;26 x 39 cm.,
Detterman, Robert L.; Reed, Bruce L., 1968, Geology of the Iliamna quadrangle, Alaska: Open-File Report 68-72, 1 map,
Dibblee, T. W., 1968, Geologic map of the Yucaipa quadrangle, San Bernardino County, California: Open-File Report 68-73, 1 map,
Dickinson, Kendell A., 1968, Subsurface data on thicknesses and distribution of some Upper Jurassic formations in adjacent parts of Texas, Louisiana, and Arkansas: s.n.], Open-File Report 68-74, 16 p. ill., maps ;29 cm.,
Dixon, H. Roberta, 1968, Bedrock geology of the Plainfield-Danielson area, Connecticut: U.S. Geological Survey], Open-File Report 68-75, 308 p. ill., maps (some col.) ;29 cm.,
Doe, Bruce R., 1968, A list of references on lead isotope geochemistry through 1966: U.S. Geological Survey], Open-File Report 68-76, 97 p. ;27 cm.,
Donnell, John R.; Yeend, Warren E., 1968, Geologic map of the Grand Valley quadrangle, Garfield County, Colorado: Open-File Report 68-77, 1 map + 1 explanation sheet,
Donnell, John R.; Yeend, Warren E., 1968, Geologic map of the Hawxhurst Creek quadrangle, Garfield and Mesa counties, Colorado: Open-File Report 68-78, 1 map :photocopy ;58 x 45 cm., folded to 20 x 26 cm. + 1 explanation sheet (60 x 87 cm., folded to 25 x 20 cm.),
Donnell, John R.; Yeend, Warren E., 1968, Geologic map of the Housetop Mountain quadrangle, Garfield and Mesa Counties, Colorado: Open-File Report 68-79, 1 map :photocopy ;58 x 46 cm., folded to 24 x 21 cm. + 1 explanation sheet (83 x 64 cm., folded to 24 x 21 cm.),
Donnell, John R.; Yeend, Warren E., 1968, Geologic map of the North Mamm Peak quadrangle, Garfield County, Colorado: Open-File Report 68-80, 1 map.,
Donnell, John R.; Yeend, Warren E., 1968, Geologic map of the South Mamm Peak quadrangle, Garfield and Mesa Counties, Colorado: Open-File Report 68-81, 1 map + 1 explanation sheet,
Dory, G. C., 1968, Phase test wells, White Sands Missile Range, Dona Ana County, New Mexico: Open-File Report 68-82, 43 p., 12 figs.,
Dory, G. C., 1968, Test wells in the Post Area, White Sands Missile Range, Dona Ana County, New Mexico: Open-File Report 68-88, 50 p., 16 figs.,
Doty, G. C., 1968, Rehabilitation of Murray well, White Sands Missile Range, New Mexico: U.S. Geological Survey, Open-File Report 68-83, 11 p. :ill. ;29 cm.,
Doty, G. C., 1968, Summary of test wells drilled for MAR site water supply, White Sands Missile Range, New Mexico: U.S. Geological Survey, Open-File Report 68-85, 19 p. :ill., map ;27 cm. in folder (30 x 24 cm.),
Doty, Gene C., 1968, Summary of production wells drilled for MAR site water supply, White Sands Missile Range, New Mexico: Open-File Report 68-84, 19 leaves : ill., map ; 29 cm.,
Doty, Gene C., 1968, Summary of wells drilled by White Sands Missile Range from June 1962 to January 1965: Open-File Report 68-86, 52 leaves : ill., map ; 29 cm.,
Doty, Gene C., 1968, Test wells drilled at Mockingbird Gap, Socorro County, New Mexico, June to October 1965: Open-File Report 68-87, 23 leaves : ill., maps ; 28 cm.,
Drewes, Harald, 1968, Preliminary geologic map of the Sahuarita quadrangle, Pima County, Arizona: Open-File Report 68-89, 1 map.,
DuBois, Robert Lee; Elston, Donald Parker, 1968, Remanent magnetism in meteorites: U.S. Geological Survey], Open-File Report 69-79, 15 p. ill. ;27 cm.,
Dutcher, L. C.; Miller, R. E., 1968, Proposed water-resources study of the lower Santa Clara River-Oxnard Plain area, California: Open-File Report 68-90, 58 p., 3 figs.,
Dutton, Carl E.; Bradley, Reta E., 1968, Map of northern half of Wisconsin showing geologic data of Precambrian area: Open-File Report 68-91, 4 maps + 2 explanation sheets,
Dyni, John R., 1968, Preliminary structure map of the northern part of the Piceance Creek basin, Colorado, and preliminary isopach map of the interval between the B-groove and orange marker of the Green River Formation, northern part of the Piceance Creek basin, Colorado: Open-File Report 68-92, 2 maps,
Eggleton, R. E.; Smith, E. I., 1968, Preliminary geologic map of the Rumker quadrangle of the moon: s.n., Open-File Report 68-93, 5 p. :map ;28 cm.,
Elliott, R. L.; Reed, Bruce L., 1968, Results of stream-sediment sampling between Windy Fork and Post River, southern Alaska Range: U.S. Geological Survey], Open-File Report 68-94, 4 p. ill., maps ;27 cm.,
Ellis, D. W., 1968, Floodflows from small drainage areas in Illinois-Preliminary flood-frequency relations: Open-File Report 68-95, 13 p., 6 figs.,
Elston, Donald Parker, 1968, Character and geologic habitat of potential deposits of water, carbon and rare gases on the moon: Open-File Report 68-96, 25 p. ill., maps (some folded) ;27 cm.,
Elston, Donald Parker, 1968, The geologic classification of the meteorites: U.S. Geological Survey], Open-File Report 68-97, 271 p. ill. (some folded, some col.) ;30 cm.,
Emmett, W. W., 1968, The hydraulics of overland flow on hillslopes: Open-File Report 68-98, 205 p., 42 figs.,
Floyd, E. O., 1968, Ground-water resources of Craven County, North Carolina: Open-File Report 68-100, 29 p., 14 figs.,
Forbes, Robert B.; Pilkington, H. D.; Hawkins, D. B., 1968, Gold gradients and anomalies in the Pedro Dome-Cleary Summit area, Fairbanks district, Alaska: U.S. Geological Survey], Open-File Report 68-101, 49 p. ill., maps ;27 cm.,
Foster, Helen L.; Keith, Terry C., 1968, Preliminary geologic map of the Eagle B-1 and C-1 quadrangles, Alaska: Open-File Report 68-103, 1 map,
Foster, Helen Laura, 1968, Reconnaisance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey, Open-File Report 68-102, 13 p. :map ;29 cm.,
Foster, Robert Lutz, 1968, Description of the Ruth Creek, Lillian Creek, Griffin, Old Smoky, Sunshine No.2, and Olive Creek lode prospects, Livengood district, Alaska: U.S. Geological Survey], Open-File Report 68-104, 21 p. ill., maps (some folded) ;27 cm.,
Fox, K. F., Jr.; Rhinehart, C. D., 1968, Geologic map fo the Loomis quadrangle, Okanogan County, Washington: Open-File Report 68-105, 1 map; scale 1:48,000,
Freedman, Jacob, 1968, Geochemical prospecting for zinc, lead, copper, and silver, Lancaster Valley, southeastern Pennsylvania: U.S. Geological Survey], Open-File Report 68-106, 4 p. ill. (some folded, col.), maps (some folded, col.) ;27 cm.,
Friedman, Jules D., 1968, Thermal anomalies and geologic features of the Mono Lake area, California, as revealed by infrared imagery: U.S. Geological Survey, Open-File Report 68-107, 84 p. ill., maps ;30 cm.,
Gair, Jacob E., 1968, Preliminary geologic map of the Palmer 7 1/2 minute quadrangle, Marquette County, Michigan: Open-File Report 68-108, 1 map + 1 explanation sheet,
Gallagher, David, 1968, Guide to Korean stratigraphic nomenclature: U.S. Geological Survey], Open-File Report 69-98, 32 p. ill. ;27 cm.,
Gallagher, David, 1968, Mineral resources of the Republic of Korea: U.S. Geological Survey], Open-File Report 69-99, 74 p. :maps ;27 cm.,
Gambell, Neil; Lucchitta, Baerbel K., 1968, A limitation of first generation Lunar Orbiter negatives as applied to photoclinometry: U.S. Geological Survey], Open-File Report 69-101, 11 p. ill. ;27 cm.,
Gardner, Maxwell E., 1968, Preliminary report on the engineering geology of the Boulder quadrangle, Boulder County, Colorado: U.S. Geological Survey], Open-File Report 68-109, 9 p. ill. (some folded), folded map ;27 cm.,
Gawarecki, Stephen J., 1968, Infrared survey of the Pisgah Crater area, San Bernardino County, California - a geologic interpretation: U.S. Geological Survey], Open-File Report 69-104, 49 p. :maps ;29 cm.,
Geological Survey (U. S.), 1968, Astrogeological Studies, Annual Progress Report, July 1, 1965, to July 1, 1966: Open-File Report 68-297, Parts A, B, C, D; 3 map supplements (12 maps),
Geological Survey (U. S.), 1968, Compilation of hydrologic data, Calaveras Creek, San Antonio River basin, Texas, 1966: Open-File Report 68-298, 34 p., 2 figs.,
Geological Survey (U. S.), 1968, Compilation of hydrologic data, Deep Creek, Colorado River basin, Texas, 1966: Open-File Report 68-299, 54 p., 2 figs.,
Geological Survey (U. S.), 1968, Compilation of hydrologic data, Escondido Creek, San Antonio River basin, Texas, 1966: Open-File Report 68-301, 44 p., 2 figs.,
Geological Survey (U.S.), 1968, Aeromagnetic map of the Unionville region, Pershing County, Nevada: Open-File Report 68-292, 1 map.,
Geological Survey (U.S.), 1968, Aeromagnetic map of the Wolcott-Boulder area, north-central Colorado: Open-File Report 68-295, 1 map,
Geological Survey (U.S.), 1968, Airborne electromagnetic and total intensity magnetic profiles in the vicinity of the Haile, Brewer, and Blackmon Mines, Lancaster, Chesterfield, and Kershaw Counties, South Carolina: Open-File Report 68-296, 2 sheets,
Geological Survey (U.S.), 1968, Compilation of hydrologic data, Elm Fork Trinity River, Trinity River basin, Texas: The Division Open-File Report 68-300, 60 p.,
Geological Survey (U.S.), 1968, Flood profile study, Squaw Creek, Linn County, Iowa: U.S. Geological Survey, Open-File Report 68-302, 5 p. (some folded) :ill., maps ;29 cm.,
Geological Survey (U.S.), 1968, Geologic map of the east flank of the Elkhorn Mountains, Broadwater County, Montana: Open-File Report 68-303, 1 map +3 explanation sheets,
Geological Survey (U.S.), 1968, Map showing location of subbottom acoustic profiles in San Francisco Bay from Bay Farm Island westward toward Hunter‘s Point filed with the National Oceanographic Data Center: U.S. Geological Survey], Open-File Report 68-304, [2] leaves :4 maps ;28 cm.,
Geological Survey (U.S.), 1968, Maps showing locations of holes drilled in 1950 and 1951 by U.S. Geological Survey, Blue Mesa area, Gateway district, Mesa and Montrose Counties, Colorado: U.S. Dept. of the Interior, Geological Survey, Open-File Report 68-305, [3] leaves :maps ;28 cm.,
Geological Survey (U.S.), 1968, Maps showing locations of holes drilled in 1950, 1951, and 1952, by U.S. Geological Survey, Moon Mesa and Horse Mesa areas, Gateway district, Mesa and Montrose Counties, Colorado: U.S. Dept. of the Interior, Geological Survey, Open-File Report 68-306, [3] leaves :maps ;28 cm.,
Geological Survey (U.S.), 1968, Provisional topographic map, Isla Desecheo, Puerto Rico: Open-File Report 68-307, 1 map,
Geological Survey (U.S.), 1968, Aeromagnetic map of Monitor Valley and vicinity, Lander and Eureka Counties, Nevada.: Open-File Report 69-292, 1 map,
Glessner, F. W., 1968, Ground-water conditions during 1967, Vandenberg Air Force Base area, California: Open-File Report 68-110, 25 p., 5 figs.,
Goldsmith, Richard, 1968, Section of the Fatima Formation near Bahrah, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-111, 6 p. ill. ;27 cm.,
Griggs, Allan B., 1968, Geologic map of the northeast part of the Spokane 2? quadrangle, Idaho and Montana: Open-File Report 68-112, 1 map.,
Griggs, Roy Lee, 1968, Altered tuffaceous rocks of the Green River Formation in the Piceance Creek Basin, Colorado: U.S. Geological Survey], Open-File Report 68-113, 38 p. ill., maps ;27 cm.,
Grolier, M. J., 1968, Preliminary geologic map of Ellipse II-6-1 and vicinity: Open-File Report 68-114, 1 map,
Grolier, M. J., 1968, Preliminary geologic map of Lunar Orbiter site orb II P-6: Open-File Report 68-115, 1 map,
Hadley, R. F., 1968, The Geological Survey‘s role in water-supply exploration and development under the Soil and Moisture Conservation Program: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, Open-File Report 68-116, 22 p. (1 folded) :1 map ;27 cm.,
Hannum, C. H., 1968, Floods on Triplett Creek in vicinity of Morehead, Kentucky: Open-File Report 68-117, 10 p., 10 figs.,
Harbour, Jerry, 1968, Preliminary geologic map of Ellipse III-12-1 and vicinity: Open-File Report 68-118, 1 map,
Harris, Leonard Dorrean, 1968, Redefinition of the terms Kingsport Formation and Mascot Dolomite and subdivisions of the upper part of the Knox Group in eastern Tennessee: U.S. Geological Survey], Open-File Report 68-119, 53 p. ill., folded map ;28 cm.,
Hawley, C. C.; Clark, Allen L.; Benfer, J. Alan, 1968, Geology of the Golden Zone mine area, Alaska: U.S. Geological Survey], Open-File Report 68-122, 18 p. :maps ;28 cm.,
Hawley, C. C.; Meier, Allen L.; Miller, Ralph L., 1968, Geochemical investigations at Antimony Creek antimony prospect, northern Talkeetna Mountains, Alaska: U.S. Geological Survey], Open-File Report 68-123, 9 p. ill., maps ;27 cm.,
Hedlund, D. C.; Olson, J. C., 1968, Geologic map of the complex of alkalic rocks at Iron Hill, Gunnison County, Colorado: Open-File Report 68-124, 1 map + 1 explanation sheet,
Hedman, E. R., 1968, Vail reservoir [California] evaporation study, progress report: Open-File Report 68-125, 17 p., 3 figs.,
Hemphill, W. R., 1968, Ultraviolet absorption and luminescence studies: Progress report for the period from April to December, 1967: Open-File Report 68-127, 57 p., 12 figs.,
Hemphill, William R., 1968, Application of ultraviolet reflectance and stimulated luminescence to the remote detection of natural materials: U.S. Geological Survey, Open-File Report 68-126, 36 p. ill. ;27 cm.,
Hickey, John J., 1968, Hydrogeologic study of the Soquel-Aptos area, Santa Cruz County, California: Open-File Report 68-129, 48 p. : ill., fold. plates in pocket ; 27 cm.,
Hofmann, Walter, 1968, Hydrologic investigations program of the Water Resources Department, Ministry of Public Works and Communication, Imperial Ethiopian Government: Open-File Report 73-115, 58 p. : maps (2 fold. in pocket) ; 27 cm.,
Holmes, George William, 1968, Preliminary materials map, Blandford quadrangle, Massachusetts: U.S. Geological Survey, Open-File Report 68-130, 1 map ;28 cm.,
Holmes, George William, 1968, Preliminary materials map, Cheshire quadrangle, Massachusetts: U.S. Geological Survey, Open-File Report 68-131, 22 tables, ill., col. map ;28 cm.,
Holmes, George William, 1968, Preliminary materials map of the Goshen quadrangle, Massachusetts: U.S. Geological Survey, Open-File Report 68-132, 4 tables, ill., map ;28 cm.,
Holmes, George William, 1968, Preliminary materials map of the North Adams quadrangle, Massachusetts-Vermont: U.S. Geological Survey, Open-File Report 68-133, 7 tables, ill., map ;27 cm.,
Holmes, George William, 1968, Preliminary materials map, Pittsfield East quadrangle, Massachusetts: U.S. Geological Survey, Open-File Report 68-134, 15 tables, ill., col. map ;28 cm.,
Holmes, George William, 1968, Preliminary materials map, Plainfield quadrangle, Massachusetts: U.S. Geological Survey, Open-File Report 68-135, 3 tables, ill. col. map. ;28 cm.,
Holmes, George William, 1968, Preliminary materials map of the Woronoco quadrangle, Massachusetts: U.S. Geological Survey], Open-File Report 68-136, 8 data sheets, ill., map ;28 cm.,
Hood, James Warren, 1968, Ground-water investigations at White Sands Missile Range, New Mexico, July 1960 to June 1962: Open-File Report 68-138, xii, 153 leaves (some folded) : ill., maps ; 30 cm.,
Hooker, Marjorie, 1968, List of references on the geology of Puerto Rico, 1866-1967: U.S. Geological Survey], Open-File Report 68-139, 46 p. ;36 cm.,
Hotchkiss, W. R., 1968, A geologic and hydrologic reconnaissance of Lava Beds National Monument and vicinity, California: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, Open-File Report 68-140, ii, 56 p., [1] folded leaf of plates :ill., maps ;27 cm.,
Hubbard, Harold Arthur, 1968, Stratigraphy and structure of some Keweenawan rocks, Michigan: U.S. Geological Survey], Open-File Report 68-141, 12 p. ;27 cm.,
Izett, Glen Arthur, 1968, The Miocene Troublesome Formation in Middle Park, northwestern Colorado: U.S. Geological Survey], Open-File Report 68-142, 42 p. ill., maps ;30 cm.,
Jackson, N. M., Jr., 1968, Flow of the Chowan River, North Carolina--A study of the hydrology of an estuary affected primarily by winds: Open-File Report 68-143, 27 p., 12 figs.,
James, I. C., II, 1968, Flood runoff from partially urbanized areas, Wichita, Kansas: Open-File Report 68-144, 62 p., 21 figs.,
James, I. C., II, 1968, Streamflow generalization in an area of the central United States: Open-File Report 68-145, 59 p., 8 figs.,
Jobson, H. E., 1968, Vertical mass transfer in open channel flow: U.S. Geological Survey, Open-File Report 68-146, xvii, 203 p. :ill. ;28 cm.,
Johnson, Arthur, 1968, Glacier observations, Glacier National Park, Montana, 1966-1967: U.S. Geological Survey, Open-File Report 68-147, 31 p. ill., maps ;28 cm.,
Johnson, Robert F.; Trent, Virgil A., 1968, Mineral reconnaissance in the southern part of the Wadi Azlam quadrangle, Saudi Arabia: U.S. Geological Survey, Open-File Report 68-150, 4 p. :maps ;28 cm.,
Johnson, Robert Francis; Trent, Virgil A., 1968, Mineral investigations in the Jabal Radwa quadrangle, northwest Hijaz, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-148, 10 p. ill. (some folded, col.), folded col. map ;27 cm.,
Johnson, Robert Francis; Trent, Virgil A., 1968, Mineral reconnaissance of the Bir al Bayda‘ quadrangle, northwest Hijaz, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-149, 13 p. :col. ill., col map ;27 cm.,
Johnson, Robert Francis; Trent, Virgil A., 1968, Mineral reconnaissance of the Wadi al ‘Aya quadrangle: U.S. Geological Survey], Open-File Report 68-151, 8 p. :col. ill., col. map ;27 cm.,
Johnston, R. H., 1968, U. S. Geological Survey tracer study, Amargosa Desert, Nye County, Nevada, Part I: Exploratory drilling, tracer well construction and testing, and preliminary findings: Open-File Report 68-152, 64 p., 7 figs.,
Jones, C. L., 1968, Potential for potash and other evaporite mineral resources in West Pakistan: U.S. Geological Survey, Open-File Report 68-153, 17 p. :maps ;27 cm.,
Jones, Fred Oscar, 1968, Slope stability programs for the city of Rio de Janeiro and environs and the landslide disaster of the Serra das Araras escarpment, Brazil, 1967: Open-File Report 68-154, ix, 99 leaves :ill., folded maps ;30 cm.; 58 figs., 5 tables,
Karlstrom, Thor Nels Vincent; McCauley, John Francis; Swann, G. A., 1968, Preliminary lunar exploration plan of the Marius Hills region of the moon: U.S. Geological Survey], Open-File Report 68-155, 42 p. ill. ;26 cm.,
Keefer, William Richard, 1968, Evaluation of radar and infrared imagery of sedimentary rock terrane, south-central Yellowstone National Park, Wyoming: U.S. Geological Survey, Open-File Report 68-156, 8 p. ill. ;28 cm.,
Kilpatrick, Bruce E., 1968, Geology and geochemistry of the Wanamu-Blue Mountains area, Waini SW, Guyana: United States, Dept. of the Interior, Geological Survey, Open-File Report 68-157, 178 p. ill., maps ;28 cm.,
Kimmel, Grant; Schiner, G. R., 1968, Progress report on the ground-water conditions of the Shenango and Stoneboro 15-minute quadrangles, Pennsylvania: Open-File Report 68-158, 167 p., 4 figs.,
King, N. J., 1968, Appraisal of watershed management program in Wind River basin, Wyoming: U.S. Dept. of the Interior, Geological Survey, Open-File Report 68-159, 24 p. :ill. ;28 cm.,
Knutilla, R. L., 1968, Regional draft-storage relationships for the Grand River basin, Michigan: Open-File Report 68-162, 7 p., 2 figs.,
Kolipinski, M. C.; Higer, A. L., 1968, Applications of aerial photography and remote sensing to hydrobiological research in South Florida: U. S. Geological Survey, Water Resources Division, Open-File Report 68-160, 5 p :ill. ;28 cm.,
Kosanke, Robert M., 1968, Palynological investigations in the Pennsylvanian of Kentucky-IV: Open-File Report 68-161, 39 p. :ill. (some folded) ;29 cm.,
Lafreniere, G. F.; French, James J., 1968, Ground-water resources of the Santa Ynez upland ground-water basin, Santa Barbara County, California: Open-File Report 68-163, iv, 42 p., [2] folded leaves of plates : ill., maps ; 27 cm.,
Lamonds, A. G.; Hines, M. S.; Plebuch, R. O., 1968, Water resources of Randolph and Lawrence Counties, Arkansas: Open-File Report 68-164, 71 p., 18 figs.,
Latkovich, V. J., 1968, Activities of the Senior Field Engineer, Surface-Water Research Project, Afghanistan, 1964-68: Open-File Report 73-154, 40 p. : maps ; 27 cm.,
Lee, Kenneth W., 1968, Determination of channel capacity of Stony Creek downstream from Black Butte Dam, Glenn and Tehama Counties, California: Open-File Report 68-165, iii, 15, 19 p., [2] folded leaves of plates : ill., maps ; 27 cm.,
Lee, William Hung Kan; Borchardt, Roger D., 1968, P[subscript n] spectral variations of the Gasbuggy explosion at intermediate distance ranges: Open-File Report 68-166, 18 p. ill., maps ;27 cm.,
Leonard, R. B., 1968, Chemical quality of water in the Walnut River basin, south-central Kansas: Open-File Report 68-167, 177 p., 27 figs.,
Lewis, Anthony J., 1968, Evaluation of multiple polarized radar imagery for the detection of selected cultural features: U.S. Geological Survey, Open-File Report 68-168, 28 p. ill. ;27 cm.,
Lewis, R. E.; Bloyd, R. M., Jr., 1968, Water-resources inventory for 1967, Antelope Valley--East Kern Water Agency area, California: Open-File Report 68-169, 16 p., 12 figs.,
Maberry, John O., 1968, Sedimentary features of the Blackhawk formation (Cretaceous) at Sunnyside, Carbon County, Utah: U.S. Dept. of the Interior, Geological Survey, Open-File Report 68-170, 180 p. ill., maps ;28 cm.,
MacKallor, Jules A., 1968, A Gemini mosaic along the thirty-second degree of latitude from Baja California to central Texas: U.S. Dept of the Interior, Geological Survey, Open-File Report 68-172, 11 p. ill. ;28 cm.,
Maher, John Charles; Trollman, William W., 1968, Geological literature on the San Joaquin Valley of California: U.S. Geological Survey], Open-File Report 68-174, 421 p. ;30 cm.,
Manji, Ashraf S., 1968, Uses of conventional aerial photography in urban areas - review and bibliography: U.S. Geological Survey], Open-File Report 68-175, 29 p. ;27 cm.,
Maroof Khan, M. A.; Parker, Norbert A., 1968, A study of suitability of Dacca clays for light-weight aggregate production in East Pakistan: U.S. Geological Survey, Open-File Report 68-176, 85 p. ill., map ;27 cm.,
McGehee, R. V.; Bayley, R. W.; White, R., 1968, Preliminary outcrop map, Rochford and vicinity, Black Hills, South Dakota, showing locations and values of samples analyzed selectively for Au, As, and Cu: Open-File Report 68-171, 1 map,
McKee, Edwin H., 1968, Geologic map of southwestern part of Lander County, Nevada: Open-File Report 68-173, 1 map + 1 explanation sheet,
McMurtrey, R. G., 1968, Geology and water resources of the Bitterroot Valley, Montana: Open-File Report 68-344, 138 leaves : ill., maps ; 28 cm.,
Mertie, John Beaver, Jr., 1968, Platinum deposits of Alaska: U.S. Geological Survey], Open-File Report 68-177, 65 p. :2 maps ;27 cm.,
Meyer, W. R.; Brackley, R. A.; Fleck, W. B., 1968, Ground water in the Great Brook basin, Massachusetts: Open-File Report 68-178, 40 p., 11 figs.,
Miller, E. M.; Kapinos, F. P., 1968, Flood of August 24-25, 1967 in the Washington metropolitan area: Open-File Report 68-179, 83 p., 37 figs.,
Miller, Fred K., 1968, Geologic map of the Quartzsite quadrangle, Arizona: Open-File Report 68-180, 1 map + 1 data sheet + 1 explanation sheet,
Miller, G. A., 1968, Test drilling and pumping-test data, Joshua Tree National Monument, 1968: Open-File Report 68-181, 15 p., 2 figs.,
Miller, G. A.; Rapp, J. R., 1968, Reconnaissance of the ground-water resources of the Ellwood-Gaviota area, Santa Barbara County, California: Open-File Report 68-182, iv, 50 p.,
Milton, Daniel J., 1968, Reconnaissance geologic map of part of the Milan quadrangle, New Hampshire-Maine, and the Percy quadrangle, New Hampshire: Open-File Report 68-183, 1 map,
Moench, R. H., 1968, Geologic maps, structure sections, and fence diagrams of Rangeley and Phillips quadrangles, Franklin and Oxford Counties, Maine, and heavy metals content of stream sediment samples from the Rangeley and parts of the Phillips and Rumford quadrangles, Maine: Open-File Report 68-184, 1 map; 7 sheets,
Moore, A. M., 1968, Water temperatures in the Columbia River Basin, July 1966 to September 1967: United States Department of the Interior, Geological Survey, Open-File Report 68-186, 24 p. :ill., map ;27 cm.,
Moore, Eric G.; Wellar, Barry S., 1968, Remote sensor imagery in urban research - some potentialities and problems: U.S. Geological Survey], Open-File Report 68-187, 29 p. ill. ;27 cm.,
Moore, H. J.; Kachadoorian, Reuben; McCauley, John F., 1968, Imagery of craters produced by missile impacts: U.S. Geological Survey, Open-File Report 68-188, 38 p. ill. ;27 cm.,
Morrison, Roger B., 1968, Preliminary soil classification map of southwestern U.S. and Mexico from space photography: U.S. Geological Survey, Open-File Report 68-189, 4 p. ill., folded map ;30 cm.,
Moxham, Robert M., 1968, Aerial infrared images of The Geysers geothermal steam field and vicinity, Samoa County, California: U.S. Geological Survey], Open-File Report 68-190, 3 p. ill., map ;30 cm.,
Moxham, Robert M., 1968, Aerial infrared surveys at The Geysers geothermal steam field, California: U.S. Geological Survey, Open-File Report 68-191, 25 p. ill., maps ;27 cm.,
Moxham, Robert M.; Greene, G. W.; Friedman, J. D.; Gawarecki, S. J., 1968, Infrared imagery and radiometry - Summary report, December 1967: U.S. Geological Survey, Open-File Report 68-192, 29 p. ill. ;30 cm.,
Moxham, Robert M.; Greene, Gordon W., 1968, Aerial infrared reconnaissance of the Steamboat Springs area, Nevada: U.S. Geological Survey], Open-File Report 69-176, 13 p. ill., maps ;30 cm.,
Mudge, Melville R., 1968, Preliminary geologic map of the Great Falls-Browns Lake area, northwestern Montana: Open-File Report 68-193, 1 map + 1 explanation sheet + 3 data sheets,
Muir, K. S.; Fenzel, F. W., 1968, Ground water in Santa Barbara County, California, spring 1966 to spring 1967: Open-File Report 68-194, 35 p., 12 figs.,
Munroe, Robert J.; Moses, Thomas H., Jr., 1968, Temperature data from exploratory boreholes at the Supplemental Test Site, central Nevada - interim report: U.S. Geological Survey], Open-File Report 68-195, 1 p. ill. ;29 cm.,
Murphy, W. E., Jr., 1968, Causes of Flooding of Little Charley Bowlegs Creek Upstream from Highlands Hammock State Park, Florida: Open-File Report 68-196, 20 p.; 11 figs.,
Mycyk, R. T.; Walter, G. L., 1968, Floods in Sycamore NE quadrangle, northeastern Illinois: Open-File Report 68-198, 10 p., 1 plate, 9 figs.,
Mycyk, R. T.; Walter, G. L.; McDonald, B. L., 1968, Floods in Sycamore SE quadrangle, northeastern Illinois: Open-File Report 68-199, 10 p., 11 figs.,
Myers, B. N., 1968, Water-Budget and Quality of Water Studies of Hubbard Creek Reservoir, Texas, 1962-67 Water Years: Geological Survey (U.S.) Open-File Report 69-332, 27 leaves : map ; 28 cm.,
Neely, B. L., Jr., 1968, Tickfaw River at Starns Bridge near Magnolia, Louisiana: Open-File Report 68-200, 5 p., 3 figs.,
Newport, Thomas Gwyn; Koester, Harry E.; Bergin, Marion Joseph, 1968, Geology, hydrology, and geochemistry of the Black Creek watershed near Mocanaqua, Luzerne County, Pennsylvania: Open-File Report 71-343, 177 leaves (some folded) : ill., maps ; 28 cm. + portfolio (54 plates),
Noble, Donald C.; Sargent, K. A.; Mehnert, H. H.; Ekren, E. B.; Byers, F. M., Jr., 1968, Silent Canyon volcanic center, Nye County, Nevada: U.S. Geological Survey, Open-File Report 68-343, i, 20 leaves :ill. ;27.,
Nordin, C. F., Jr., 1968, Statistical properties of dune profiles: Open-File Report 68-201, 137 p., 44 figs.,
Offield, T. W., 1968, Preliminary geologic map of Lunar Orbiter site orb III P-12: Open-File Report 68-202, 1 map + 1 explanation sheet,
Oldale, R. N.; Coteff, Karl; Hartshorn, J. H., 1968, Geologic map of the Orleans quadrangle, Barnstable County, Cape Cod, Massachusetts: Open-File Report 68-203, 1 map + 1 explanation sheet,
Oriel, Steven S., 1968, Preliminary geologic map of Bancroft quadrangle, Caribou and Bannock Counties, Idaho: Open-File Report 68-204, 1 map ;58 x 43 cm. on sheet 72 x 88 cm.,
Oriel, Steven S.; Platt, Lucian B., 1968, Reconnaissance geologic map of the Preston quadrangle, southeastern Idaho: Open-File Report 68-205, 1 map on 2 sheets + 1 explanation sheet,
Orkild, Paul P.; Byers, F. M., Jr.; Hoover, D. L.; Sargent, K. A., 1968, Subsurface geology of the Silent Canyon caldera, Nevada Test Site, Nevada: U.S. Geological Survey], Open-File Report 68-206, 19 p. ill., maps ;19 cm.,
Overstreet, William C., 1968, Mineral exploration between Bi‘ir Idimah and Wadi Haraman, Asir quadrangle, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-207, 70 p. ill. ;27 cm.,
Overstreet, William C., 1968, Mineral investigations between Khamis Mushayt and Bi‘r Idimah, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-208, 15 p. ill. ;27 cm.,
Overstreet, William C., 1968, Preliminary results of a trip October 30-December 21, 1965, to the area between Sha‘ya and Jabal Bani Bisqan, Saudi Arabia, together with a synopsis of mineral reconnaissance in the Asir quadrangle: U.S. Geological Survey], Open-File Report 68-209, 48 p. ill. ;27 cm.,
Overstreet, William C., 1968, Summary of results from a trip February 6-March 5, 1966, to B‘ir Idimah, Jabal Ashirah, and As Sarat Mountains, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-210, 47 p. ill., maps ;27 cm.,
Page, Norman J., 1968, Preliminary geologic map of the Eudoxus quadrangle of the moon: Open-File Report 68-211, 1 map,
Pease, Robert W.; Browden, Leonard W., 1968, Making color infrared film a more effective high altitude sensor: U.S. Geological Survey], Open-File Report 69-198, 31 p. ill. (some col.) ;27 cm.,
Pierce, Kenneth Lee, 1968, Evaluation of infrared imagery applications to studies of surficial geology -- Yellowstone Park: [U.S. Geological Survey], Open-File Report 68-212, 20 p. ill., maps ;30 cm.,
Piper, A. M., 1968, Potential applications of nuclear explosives in development and management of water resources-Preliminary canvas of the ground-water environment: Open-File Report 68-213, 173 p., 6 figs.,
Pluhowski, E. J., 1968, Urbanization and its effect on the temperature of Long Island streams: Open-File Report 68-214, 278 p., 56 figs.,
Pohn, H. A., 1968, Preliminary geologic map of Lunar Orbiter site orb III P-9: Open-File Report 68-215, 1 map,
Popenoe, Peter, 1968, Complete Bouguer gravity anomaly map of the area north of the Grand Canyon in Arizona: Open-File Report 68-216, 1 map.,
Popenoe, Peter, 1968, Principal facts for gravity stations in the area north of the Grand Canyon in Arizona: U.S. Geological Survey], Open-File Report 68-217, 16 p. :map ;28 x 38 cm.,
Pratt, Walden P., 1968, Infrared imagery of Lordsburg-Silver City area, New Mexico: U.S. Geological Survey, Open-File Report 68-218, 13 p. ill. ;28 cm.,
Puffett, Willard P.; Fritts, C. E., 1968, Preliminary map of the Negaunee 7 1/2 minute quadrangle, Marquette County, Michigan: Open-File Report 68-219, 1 map + 1 explanation sheet,
Radbruch, Dorothy H., 1968, Map showing recently active breaks along the Hayward fault zone and the southern part of the Calaveras fault zone, California: Open-File Report 68-220, 1 map on 2 sheets :col. ;92 x 148 cm. and 120 x 109 cm. fold. in envelope 30 x 24 cm.,
Rankin, D. W.; Espenshade, G. H.; Neuman, R. B., 1968, Geologic map of the western half of the Winston-Salem quadrangle, North Carolina, Virginia, and Tennessee: Open-File Report 68-221, 1 map :col. ;44 x 36 cm., on sheet 77 x 132 cm. folded in envelope 30 x 24 cm.,
Rapp, Richard H.; Sprinsky, William H., 1968, Gridding of near vertical unrectified space photographs: U.S. Geological Survey], Open-File Report 68-222, 46 p. ill. ;30 cm.,
Rawson, Jack; Schultz, Gerald K., 1968, Quantity and Quality of Base Flow in the Leon and Lampasas Rivers, Texas, January 16-17, 1968: Geological Survey (U.S.) Open-File Report 69-331, 25 [i.e., 23] leaves : ill., maps ; 28 cm.,
Raytheon Co., 1968, Analysis of multisensor data, autometric operation: [s.n.], Open-File Report 69-214, 35 p. ill. ;28 cm.,
Reed, Bruce L.; Elliott, R. L., 1968, Results of stream sediment sampling in parts of the southern Alaska Range: U.S. Geological Survey], Open-File Report 68-223, 18 p. ill., maps ;27 cm.,
revised by Reed, John C., Jr., 1968, Tectonic map of the central and southern Appalachians: Open-File Report 68-224, 1 map + 1 data sheet + 3 explanation sheets (5 sheets),
Reynolds, Mitchell W., 1968, Geologic map of the Muddy Gap quadrangle, Carbon County, Wyoming: Open-File Report 68-225, 1 map + 1 explanation sheet + 1 data sheet (3 sheets); col. ;58 x 43 cm. on sheet 79 x 84 cm.,
Reynolds, Mitchell W., 1968, Geologic map of the Whiskey Peak quadrangle, Carbon, Fremont, and Sweetwater Counties, Wyoming: Open-File Report 68-226, 1 map + 1 explanation sheet + 1 data sheet (3 sheets); col. ;57 x 43 cm., sheet 84 x 86 cm.,
Reynolds, Mitchell W., 1968, Preliminary geologic map of some Upper Cretaceous and Paleocene rocks and Quaternary deposits, Bairoil quadrangle, Carbon and Sweetwater Counties, Wyoming: Open-File Report 68-227, 1 map + 1 explanation sheet,
Reynolds, Mitchell W., 1968, Preliminary geologic map of the Lamont quadrangle, Carbon County, Wyoming: Open-File Report 68-228, 1 map + 1 explanation sheet,
Richter, Donald H., 1968, Geology and lode gold deposits of the Nuka Bay area, Kenai Peninsula, Alaska: U.S. Geological Survey], Open-File Report 68-229, 52 p. ill., maps ;27 cm.,
Ritter, J. R.; Helley, E. J., 1968, An optical method for determining particle sizes of coarse sediment: Open-File Report 68-230, 50 p., 12 figs.,
Robinson, T. W., 1968, Areal extent of phreatophytes and hydrophytes in Utah, New Mexico, and Colorado: Open-File Report 68-231, 32 p., 2 figs.,
Robison, J. H., 1968, Estimated existing and potential ground-water storage in major drainage basins in Oregon: Open-File Report 68-232, 12 leaves, [2] folded leaves of plates : ill., map ; 29 cm.,
Robson, Stanley G., 1968, Data on wells and springs on Vandenberg Air Force Base and vicinity, Santa Barbara County, California: Open-File Report 68-233, iv, 132 p. : maps ; 28 cm.,
Rowan, L. C., 1968, Preliminary geologic map of Lunar Orbiter site orb II-P-8: Open-File Report 68-234, 1 map,
Rubey, William W.; Oriel, Steven S.; Tracey, Joshua I., Jr., 1968, Preliminary geologic map of Kemmerer quadrangle, Lincoln County, Wyoming: Open-File Report 68-235, 1 map,
Rubey, William W.; Tracey, Joshua I., Jr.; Oriel, Steven S., 1968, Preliminary geologic map of Sage quadrangle, Lincoln County, Wyoming: Open-File Report 68-236, 1 map,
Saunders, R. S.; Mutch, T. A., 1968, Preliminary geologic map of Ellipse III-9-5 and vicinity: Open-File Report 68-197, 1 map,
Schleicher, David, 1968, A testing of court-stenographic techniques for recording geologic descriptions: U.S. Geological Survey], Open-File Report 69-238, 13 p. ill. ;27 cm.,
Schnabel, Robert Wayne, 1968, Chemical analyses of selected samples of diabase and basalt from Connecticut: U.S. Geological Survey], Open-File Report 68-237, 4 sheets of tables ;28 cm.,
Scholl, David William; Hopkins, David Moody, 1968, Bering Sea shelf seismic reflection records, 1967 (R/V Thompson): U.S. Geological Survey], Open-File Report 68-238, 33 sheets :charts, map ;30 cm.,
Schwob, Harlan H., 1968, Flood of June 7, 1967, in the Wapsinonoc Creek Basin, Iowa: U.S. Geological Survey, Water Resources Division Open-File Report 68-b, 21 p.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, III: East Oumalik Test Well No. 1: U.S. Geological Survey, Open-File Report 68-239, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, IV: North Simpson Test Well No. 1: U.S. Geological Survey, Open-File Report 68-240, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, V: Oumalik Test Well No. 1: U.S. Geological Survey, Open-File Report 68-241, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No. 4, VI: South Barrow test well No. 3: U.S. Geological Survey, Open-File Report 68-242, 1 p. ;27 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No. 4, VII: Topogorak Test Well No. 1: U.S. Geological Survey], Open-File Report 68-243, 1 v.. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, VIII: Gubik Test Well No. 2: U.S. Geological Survey, Open-File Report 68-244, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, IX: Gubik Test Well No. 1: U.S. Geological Survey, Open-File Report 68-245, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, X: Avak Test Well No. 1: U.S. Geological Survey], Open-File Report 68-246, 1 v. ;28 cm.,
Scott, Richard A., 1968, Availability of palynological material from Naval Petroleum Reserve No.4, XI: Meade Test Well No. 1: U.S. Geological Survey, Open-File Report 68-247, 1 v. ;28 cm.,
Seaber, P. R., 1968, An appraisal of the ground-water resources of the Upper Susquehanna River basin in Pennsylvania: Open-File Report 68-248, 130 p., 6 figs.,
Shomaker, J. W., 1968, Site study for water well, Fort Wingate Army Ordnance Depot, McKinley County, New Mexico: Open-File Report 68-249, 28 p., 3 figs.,
Simonett, David S., 1968, Land evaluation studies with remote sensors in the infrared and radar regions: U.S. Geological Survey, Open-File Report 68-250, 31 p. ill. ;30 cm.,
Simonett, David S., 1968, Potential of radar sensors as tools in reconnaissance geomorphic, vegatation, and soil mapping: U.S. Geological Survey], Open-File Report 68-251, 14 p. :maps ;30 cm.,
Simonett, David S.; Brooner, William G., 1968, Crop type discrimination with color infrared photography; preliminary results in Douglas County, Kansas: Open-File Report 71-260, 7 p. ill., maps.,
Simons, W. D., 1968, Hydrology of Hungry Horse Reservoir, Montana--Basic data supplement: Open-File Report 68-252, 154 p., 1 fig.,
Smedes, Harry W., 1968, Preliminary geologic map of part of the Butte North quadrangle, Silver Bow, Deer Lodge, and Jefferson Counties, Montana: Open-File Report 68-254, 1 map + 1 explanation sheet,
Smedes, Harry Wynn, 1968, Geologic evaluation of infrared imagery, eastern part of Yellowstone National Park, Wyoming and Montana: U.S. Geological Survey, Open-File Report 68-253, 27 p. ill. ;30 cm.,
Snavely, Parke Detweiler, Jr.; MacLeod, Norman S., 1968, Preliminary evaluation of infrared and radar imagery, Washington and Oregon coasts: U.S. Geological Survey, Open-File Report 68-255, 13 p. ill. ;30 cm.,
Stallings, J. S., 1968, South Carolina streamflow characteristics--Low-flow frequency and flow duration: Open-File Report 68-256, 83 p., 1 pl., 9 figs.,
Stanin, S. Anthony; Cooper, Bismark R., 1968, The Mt. Montro kyanite deposit, Grand Bassa County, Liberia: U.S. Geological Survey, Open-File Report 68-258, 33 p. ill., maps (1 folded) ;28 cm.; 4 pls., 1 fig., 1 table,
Steven, T. A., 1968, Geologic map of the Wagon Wheel Gap fluorspar district, Colorado: Open-File Report 68-259, 1 map+ explanation sheet,
Stewart, J. W., 1968, Hydrologic effects of pumping from the Floridan aquifer in northwest Hillsborough, northeast Pinellas, and southwest Pasco Counties, Florida: U.S. Geological Survey Open-File Report 68-262, 226 p., 15 pls., 60 figs.,
Stewart, John H.; McKee, Edwin H., 1968, Geologic map of southeastern part of Lander County, Nevada: Open-File Report 68-260, 1 map + 1 explanation sheet,
Stewart, John H.; McKee, Edwin H., 1968, Geologic map of west-central part of Lander County, Nevada: Open-File Report 68-261, 1 map + 1 explanation sheet,
Subitzsky, Seymour, 1968, Geology and Ground Water Resources of Spotsylvania County, Virginia: Open-File Report 68-263, x, 185 leaves : ill., maps (1 col.) ; 28 cm.,
Sundelius, Harold W.; Taylor, Alfred R., 1968, Preliminary geologic map of the Gold Hill quadrangle, North Carolina: Open-File Report 68-264, 1 map + 1 explanation sheet,
Sutton, R. L., 1968, Evaluation of a periscopic aircraft sextant as a surveying tool during advanced systems field test 3: U.S. Geological Survey, Open-File Report 68-265, iii, 9 p. , [1] fold. leaf of plates :ill., map ;27 cm.,
Swanson, Donald A., 1968, Reconnaissance geologic map of the east half of the Bend quadrangle, Crook, Wheeler, Jefferson, Wasco and Deschutes Counties, Oregon: Open-File Report 68-266, 1 map + 1 explanation sheet :col. ;45 x 33 cm., on sheet 76 x 102 cm. folded in envelope 30 x 24 csm.,
Theobald, P. K., Jr.; Thompson, Charles Emmet., 1968, Experimental error in sample preparation and spectrographic analysis in the Jiddah laboratory, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-267, 6 p. :col. ill. ;28 cm.,
Tibbitts, G. Chase, Jr., 1968, Ground-water resources investigation program for the Kinshasa area, Democratic Republic of the Congo: Open-File Report 73-278, 43 p. ill. ; 27 cm.,
Titley, S. R., 1968, Preliminary geologic map of Ellipse II-13-2 and vicinity: Open-File Report 68-268, 1 map,
Titley, S. R., 1968, Preliminary geologic map of Lunar Orbiter site of orb II P-13: Open-File Report 68-269, 1 map,
Tobler, Waldo R., 1968, Satellite confirmation of settlement size coefficient: U.S. Geological Survey], Open-File Report 69-285, 6 p. ill. ;27 cm.,
Trask, N. J., 1968, Preliminary geologic map of Ellipse II-8-3 and vicinity: Open-File Report 68-270, 1 map,
Trask, N. J., 1968, Preliminary geologic map of Ellipse II-11-2 and vicinity: Open-File Report 68-271, 1 map,
Trent, Virgil A., 1968, A geologic and mineral reconnaissance by helicopter in a part of the Tihamat Ash Sham quadrangle, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-272, 10 p. ;27 cm.,
Trent, Virgil A., 1968, Mineral investigations in the Al Aqiq area, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-273, 4 p. ;27 cm.,
Trent, Virgil A.; Johnson, Robert Francis., 1968, Preliminary report on a field trip September 29-December 12, 1964 to to the Aqaba area, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-274, 6 p. :2 folded maps (1 col.) ;27 cm.,
Trent, Virgil A.; Johnson, Robert Francis., 1968, Reconnaissance mineral and geologic investigations in the Al Bad‘ quadrangle, Aqaba area, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-275, 18 p. :2 maps (1 folded) ;27 cm.,
Trent, Virgil A.; Johnson, Robert Francis., 1968, Reconnaissance mineral and geologic investigations in the Maqna quadrangle, Aqaba area, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-276, 5 p. ill., 2 maps (1 folded) ;27 cm.,
Trent, Virgil A.; Johnson, Robert Francis., 1968, Reconnaissance mineral and geological investigations in the Tayyib Al Ism quadrangle, Aqaba area, Saudi Arabia: U.S. Geological Survey, Open-File Report 68-277, 8 p. ill., maps (some folded) ;28 cm.,
Trent, Virgil A.; Sultan, Ghazi H., 1968, A geologic and mineral reconnaissance of the Ablah formation and the Kamdan anomaly, South Aqiq area, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-278, 16 p. :maps ;27 cm.,
Tschanz, Charles MaFarland; Hall, R. B.; Feininger, T.; Ward, D.; Goldsmith, R.; MacLaughlin, D. H.; Maughan, E., 1968, Summary of mineral resources in four selected areas of Colombia: U.S. Geological Survey], Open-File Report 68-279, 58 p. ill., maps (some col.) ;27 cm.,
Turner, Robert M.; Boynton, George R., 1968, Film density analyzers for infrared investigations: U.S. Geological Survey, Open-File Report 68-280, 10 p. ill. ;28 cm.,
U.S. Coast and Geodetic Survey, 1968, United States earthquakes, 1928-1935: Open-File Report 84-928, 452 p. in various pagings : ill., maps ; 23 cm.,
Ulrich, G. E., 1968, Advanced systems traverse research project report: Open-File Report 68-281, 59 p., 21 figs., 3 tables,
Van Horn, Richard, 1968, Preliminary surficial geologic map and materials test data of the Golden quadrangle, Jefferson County, Colorado: Open-File Report 68-308, 1 map + 2 data sheets,
Van Horn, Richard, 1968, Surficial geologic map of the Sugar House quadrangle, Salt Lake County, Utah: Open-File Report 68-309, 1 map + 1 data sheet + 1 explanation sheet :col. ;58 x 44 cm., on sheet 74 x 92 cm. folded in envelope 30 x 24 cm.,
Varnes, David J., 1968, Alaska Railroad Terminal Reserve, Anchorage, Soil-stability study -Stability in the vicinity of boring lines 1 and 2: s.n.], Open-File Report 68-310, 40 p. ill., maps (some folded) ;28 cm.,
Vedder, J. G.; Wallace, R. E., 1968, Map showing recently active breaks along the San Andreas and related faults between Cholame Valley and Tejon Pass, California: Open-File Report 68-311, 1 map on 2 sheets :col. ;sheets 87 x 133 cm.,
Von Hake, Carl A.; Cloud, William K., 1968, United States earthquakes, 1966: Open-File Report 84-966, 114 p. ill. ; 26 cm.,
Wait, R. L.; Gregg, D. O., 1968, Piezometric surface of principal artesian aquifer in coastal area of Georgia, December 1966: Open-File Report 68-312, 1 map,
Walters, R. L., 1968, Radar bibliography for geoscientists: Open-File Report 68-313, 28 p.,
Warren, David H.; Healy, J. H.; Hoffman, J. C.; Kempe, Reinis; Rauula, Srinivasreddy; Stuart, D. J., 1968, Project Early Rise: Traveltimes and amplitudes: National Center for Earthquake Research, Open-File Report 68-314, 150 p. ill., maps ;27 cm.,
Warren, David H.; Jackson, W. H., 1968, Surface seismic measurements of the Project GASBUGGY explosion at intermediate distance ranges: National Center for Earthquake Research Open-File Report 68-315, 45 p. ill., maps ;27 cm.,
Watkins, Joel S.; Whitcomb, James H., 1968, Thumper final report, ALSEP active seismic experiment: U.S. Geological Survey], Open-File Report 68-316, 72 p. ill. ;26 cm.,
Watts, H. V.; Goldman, H. J., 1968, Vacuum ultraviolet measurements of reflectance and luminescence from various rock samples: Open-File Report 68-317, 24 p., 2 figs., 1 table, 20 data curves,
Wellar, Barry S., 1968, Generation of housing quality data from multiband aerial photographs: U.S. Geological Survey], Open-File Report 68-318, 104 p. ill. ;27 cm.,
Wellar, Barry S., 1968, Thermal infrared imagery in urban studies: U.S. Geological Survey, Open-File Report 68-319, 30 p. ill., maps ;27 cm.,
Wellar, Barry S., 1968, Utilization of multiband aerial photographs in urban housing quality studies: U.S. Geological Survey], Open-File Report 68-320, 21 p. ill. ;27 cm.,
West, Mareta; Cannon, P. Jan, 1968, Preliminary geologic map of Ellipse III-11-8 and vicinity: Open-File Report 68-321, 1 map,
White, Donald Edward; Fournier, R. O.; Muffler, L. J. P.; Truesdell, A. H., 1968, Geothermal studies - Yellowstone National Park (Test Site 11), Wyoming: [U.S. Geological Survey, Open-File Report 68-322, 9 p. :folded ill., maps ;30 cm.,
Whitesides, D. V.; Ryder, P. D., 1968, Effect of pumping from the Ohio River valley alluvium between Carrollton and Ghent, Kentucky: Open-File Report 68-324, 30 p., 4 figs.,
Whitlow, Jesse William, 1968, A mineral reconnaissance of the Jabal Khida quadrangle, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-325, 18 p. :map ;27 cm.,
Whitlow, Jesse William, 1968, Preliminary report of a mineral reconnaissance in the Al Maddah-Harfayn area, Asir quadrangle, Saudi Arabia: U.S. Geological Survey], Open-File Report 68-326, 4 p. :2 maps ;27 cm.,
Wilder, H. D.; Hubbard, E. F., 1968, Interim report on sea-water encroachment into the Cape Fear River Estuary, North Carolina: Open-File Report 68-327, 32 p., 15 figs.,
Willden, Charles Ronald; Speed, Robert C., 1968, Geology and mineral deposits of Churchill County, Nevada: U.S. Geological Survey], Open-File Report 68-329, 123 p. ill. (some folded), maps (some folded) ;31 cm.,
Williams, K. F.; George, J. R., 1968, Preliminary appraisal of stream sedimentation in the Susquehanna River basin: Open-File Report 68-330, 73 p., 11 figs.,
Wilshire, H. G., 1968, Preliminary geologic map of Lunar Orbiter site orb II P-11: Open-File Report 68-331, 1 map,
Wolcott, Don E., 1968, Preliminary structure map of the Buckeye quadrangle, central Kentucky: Open-File Report 68-332, 1 map,
Wolcott, Don E., 1968, Preliminary structure map of the Little Hickman quadrangle, central Kentucky: Open-File Report 68-333, 1 map,
Yacoub, Nazieh K.; Scott, James Henry; McKeown, F. A., 1968, Computer technique for tracing seismic rays in two-dimensional geological models: U.S. Geological Survey], Open-File Report 68-334, 65 p. ill., maps ;27 cm.,
Yeend, Warren E.; Donnell, John R., 1968, Geologic map of the Rulison quadrangle, Garfield County, Colorado: Open-File Report 68-335, 1 map + 1 explanation sheet,
Yochelson, Ellis Leon, 1968, Charts showing distribution and abundance of fossils in the Phosphoria, Park City, and Shedhorn Formations in Wyoming, Idaho, Utah, and Montana: Open-File Report 68-336, 8 maps.,
Zeller, Howard D., 1968, Preliminary geologic map of the Canaan Creek quadrangle, Garfield County, Utah: Open-File Report 68-337, 1 map + 1 chart,
Zeller, Howard D., 1968, Preliminary geologic map of the Carcass Canyon quadrangle, Garfield and Kane Counties, Utah: Open-File Report 68-338, 1 map + 1 chart,
Zeller, Howard D., 1968, Preliminary geologic map of the Dave Canyon quadrangle, Garfield County, Utah: Open-File Report 68-339, 1 map + 1 chart,
Zietz, Isidore; Hearn, B. C.; Plouff, Donald, 1968, Preliminary interpretation of aeromagnetic and gravity data near the Large Aperture Seismic Array, Montana: National Center for Earthquake Research, Open-File Report 68-340, 23 p. ill., maps ;27 cm.,
Zohdy, Adel A. R.; Jackson, D. B., 1968, Ground-water exploration using the resistivity method on the Hawaiian Islands of Oahu and Hawaii: U.S. Geological Survey], Open-File Report 68-341, 38 p. ;28 cm.,

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