- Alpha, T. R.; Moore, J. G., 1981, Physiographic diagrams of the May 18, 1980, landslide-eruption of Mount St. Helens, Washington: Miscellaneous Field Studies Map 1289, 6 physiographic diagrams ;on sheet 63 x 101 cm.,
- Alpha, T. R.; Moore, J. G.; Morley, J. M.; Jones, D. R., 1981, Physiographic diagrams of Mount St. Helens, Washington showing changes in its summit crater, summer 1980: Miscellaneous Field Studies Map 1279, 5 physiographic diagrams ;on sheet 85 x 101 cm.,
- Amos, D. H., 1981, Geologic map of the Whitewater Quadrangle, southeastern Missouri: Miscellaneous Field Studies Map 1256, 1 map ;58 x 46 cm. on sheet 73 x 95 cm.,
- Amos, D. H., 1981, Geologic map of the Chaffee Quadrangle, Scott and Cape Girardeau counties, Missouri: Miscellaneous Field Studies Map 1316, 1 map ;58 x 47 cm.,
- Amos, D. H., 1981, Geologic map of the Dongola Quadrangle, Bollinger and Stoddard counties, Missouri: Miscellaneous Field Studies Map 1363, 1 map ;58 x 46 cm.,
- Anderson, J. J.; Lanigan, J. C.; Cunningham, C. G; Naeser, C. W., 1981, Geologic map of the Beaver SE Quadrangle, Beaver County, Utah: Miscellaneous Field Studies Map 1274, 1 map ;58 x 46 cm. on sheet 72 x 96 cm.,
- Atwood, T. J.; Bruns, T. R.; Carlson, P. R.; Molnia, B. F.; Plafker, George, 1981, Bathymetric maps of the northern Gulf of Alaska: Miscellaneous Field Studies Map 859, 3 maps ;117 x 92 cm. and 86 x 125 cm.,
- Barnard, J. B.; Page, N. J.; Blakely, R. J.; Ziemianski, W. P.; Banister, C. A.; Giusso, J. R., 1981, Map showing distribution of serpentine minerals, density, and magnetic susceptibility of rocks from the Kalmiopsis Wilderness, southwestern Oregon: Miscellaneous Field Studies Map 1240-B, 1 map ;89 x 66 cm.,
- Bartow, J. A.; Marchand, D. E.; Tinsely, J. C.; Doukas, M. P., 1981, Trench log, geologic map, and results of geophysical studies of lineaments in the McFarland area, Kern County, California: Miscellaneous Field Studies Map 1272, 3 maps, 2 trench logs ;on sheet 99 x 138 cm.,
- Behum, P. T.; Hammack, R. W., 1981, Maps showing mines, quarries, prospects, and exposures in the Cheat Mountain Roadless Area, Randolph County, West Virginia: Miscellaneous Field Studies Map 1271-C, 4 maps on 1 sheet ;37 x 29 cm. and smaller sheet 101 x 85 cm., folded in envelope 25 x 32 cm.,
- Behum, P. T.; Mory, P. C., 1981, Maps showing mines, quarries, prospects, and exposures in the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia: Miscellaneous Field Studies Map 1267-C, 3 maps ;on sheet 60 x 53 cm.,
- Bergquist, J. R.; Shride, A. F.; Wrucke, C. T., 1981, Geologic map of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona: Miscellaneous Field Studies Map 1162-A, 1 map ;68 x 83 cm.,
- Billings, M. P.; Lyttle, P. T., 1981, Map showing paleontological control of Paleozoic stratigraphy in New England: Miscellaneous Field Studies Map 1302, -,
- Blackwelder, B. W.; Cronin, T. M., 1981, Atlantic coastal plain geomorphology illustrated by computer-generated block diagrams: Miscellaneous Field Studies Map 1242, 2 block diagrams ;on sheet 112 x 130 cm.,
- Brown, C. E.; Spencer, E. W., 1981, Geologic map of the James River Face Wilderness, Bedford and Rockbridge counties Virginia: Miscellaneous Field Studies Map 1337-A, 1 map ;39 x 46 cm. on sheet 71 x 105 cm.,
- Bruns, T. R.; Atwood, T. J.; Childs, J. R., 1981, Free-air gravity anomaly map, Cross Sound to Icy Bay, northern Gulf of Alaska: Miscellaneous Field Studies Map 1306, 1 map ;56 x 75 cm.,
- Bruns, T. R.; Childs, J. R.; Atwood, T. J., 1981, Free-air gravity anomaly map, Dixon Entrance to Cross Sound, northeastern Gulf of Alaska: Miscellaneous Field Studies Map 1307, 1 map ;67 x 62 cm.,
- Campbell, D. L., 1981, Aeromagnetic and complete Bouguer gravity anomaly maps of the Hunter-Fryingpan Wilderness area, Pitkin County, Colorado: Miscellaneous Field Studies Map 1236-C, 2 maps ;75 x 92 cm.,
- Case, J. E.; Barnes, D. F.; Detterman, R. L.; Morin, R. L.; Sikora, R. F., 1981, Gravity anomaly and interpretation map of the Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-J, 1 map ;88 x 115 cm. +1 text (5 p. ; 28 cm. ),
- Case, J. E.; Cox, D. P.; Detra, D. E.; Detterman, R. L.; Wilson F. H., 1981, Maps showing aeromagnetic survey and geologic interpretation of the Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-B, 2 maps ;45 x 115 cm. +1 text (8 p. ; 28 cm.),
- Cathrall, J. B.; Billings, T. M.; Cooley, E. F.; O'Leary, R. M., 1981, Maps showing anomalous drainage areas of selected elements in the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-D, 2 maps ;45 x 52 cm. on sheet 96 x 122 cm.,
- compiled by Hedel, C. W., 1981, Map showing geothermal resources of the Lake City-Surprise Valley Known Geothermal Resource Area, Modoc County, California: Miscellaneous Field Studies Map 1299, 1 map ;110 x 34 cm.,
- Cox, D. P.; Detra, D. E.; Detterman, R. L., 1981, Mineral resource maps of the Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-K, 2 maps ;45 x 114 cm. folded in envelope 25 x 32 cm.,
- Detterman, R. L.; Yount, M. E.; Case, J. E., 1981, Megafossil sample locality map, checklists, and stratigraphic sections of the Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-N, 1 map, 4 stratigraphic sections and 9 tables on 2 sheets ;sheets 99 x 122 cm., 117 x 99 cm., folded in envelope 25 x32 cm.,
- du Bray, E. A., 1981, Generalized bedrock geologic map of the John Muir Wilderness, Fresno, Inyo, and Mono counties, California: Miscellaneous Field Studies Map 1185-A, 1 map ;153 x 89 cm. on 2 sheets 100 x 88 cm. and 92 x 72 cm.,
- Du Bray, E. A.; Dellinger, D. A., 1981, Geologic map of the Golden Trout Wilderness, southern Sierra Nevada, California: Miscellaneous Field Studies Map 1231-A, 1 map ;104 x 140 cm.,
- Duval, J. S.; Pitkin, J. A., 1981, Radiometric and magnetic anomalies of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona: Miscellaneous Field Studies Map 1162-F, 1 map ;77 x 85 cm.,
- Duval, J. S.; Pitkin, J. A., 1981, Aerial radiometric and magnetic surveys, Snowy Range Wilderness Study Area and contiguous area, southeastern Wyoming: Miscellaneous Field Studies Map 1366-A, 8 maps ;32 x 31 cm. on sheet 120 x 102 cm.,
- Earhart, R. L.; Mudge, M. R.; Whipple, J. W.; Connor, J. J., 1981, Mineral resources of the Choteau 1 degree by 2 degrees Quadrangle, Montana: Miscellaneous Field Studies Map 858-A, 2 maps ;45 x 61 cm. on sheet 112 x 147 cm.,
- Englund, K. J.; Sigleo, W. R.; Teaford, N. K., 1981, Geologic map of the Cheat Mountain Further Planning Area, Randolph County, West Virginia: Miscellaneous Field Studies Map 1271-A, 3 maps ;on sheet 73 x 70 cm.,
- Englund, K. J.; Teaford, N. K., 1981, Geologic map of the Beaver Creek Wilderness, McCreary County, Kentucky: Miscellaneous Field Studies Map 1348-A, 3 maps ;on sheet 79 x 61 cm.,
- Fisher, M. A.; Moore, G. W.; von Heuene, R.; McClellan, P. H., 1981, Map of marine magnetic data from Shelikof Strait to Sutwik Island, Alaska: Miscellaneous Field Studies Map 1227, 1 map ;69 x 79 cm.,
- Force, E. R., 1981, Geologic map of the Little Frog Roadless Area, Polk County, Tennessee: Miscellaneous Field Studies Map 1338-A, 1 map ;58 x 48 cm.,
- Gilbert, L. E.; Dillon, W. P., 1981, Bathymetric map of the Blake Escarpment: Miscellaneous Field Studies Map 1362, 1 map ;113 x 57 cm.,
- Griscom, Andrew, 1981, Map showing aeromagnetic interpretation of the Baker-Cypress BLM Instant Study Area and Timbered Crater Forest Service Further Planning Areas, Modoc, Shasta, and Siskiyou counties, California: Miscellaneous Field Studies Map 1214-C, 1 map ;30 x 34 cm. on sheet 59 x 74 cm.,
- Grosz, A. E., 1981, Geochemical survey of the Sipsey Wilderness and additions, Lawrence and Winston counties, Alabama: Miscellaneous Field Studies Map 1288-A, 2 maps ;40 x 52 cm. on sheet 137 x 113 cm.,
- Grosz, A. E.; Siems, D. F., 1981, Geochemical survey of the Beaver Creek Wilderness, McCreary County, Kentucky: Miscellaneous Field Studies Map 1348-B, 3 maps ;26 x 23 cm. and 18 x 14 cm. on sheet 73 x 113 cm.,
- Grybeck, D. J.; McDanal; Cooley, E. F.; O'Leary, R. M., 1981, Map of anomalous rock samples and histograms of trace metals in the rocks of the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-E, 1 map ;45 x 52 cm. on sheet 106 x 148 cm.,
- Grybeck, D. J.; Nelson, S. W., 1981, Map and interpretation of the structural geology of the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-B, 1 map ;45 x 52 cm.,
- Grybeck, D. J.; Nelson, S. W., 1981, Mineral deposit map of the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-F, 1 map ;45 x 52 cm. on sheet 103 x 118 cm.,
- Hall, C. A., Jr., 1981, Map of geology along the Little Pine Fault, parts of the Sisquoc, Foxen Canyon, Zaca Lake, Bald Mountain, Los Olivos, and Figueroa Mountain quadrangles, Santa Barbara County, California: Miscellaneous Field Studies Map 1285, 1 map ;115 x 140 cm. on 2 sheets 74 x 146 cm. and 122 x 107 cm.,
- Hamilton, T. D., 1981, Surficial geology of the Survey Pass Quadrangle, Alaska: Miscellaneous Field Studies Map 1320, 1 map ;45 x 52 cm.,
- Harrison, J. E.; Griggs, A. B.; Wells, J. D., 1981, Generalized geologic map of the Wallace 1 degree by 2 degrees Quadrangle, Montana and Idaho: Miscellaneous Field Studies Map 1354-A, 1 map ;47 x 68 cm.,
- Harwood, D. S., 1981, Geologic map of the Granite Chief Wilderness Study Area and adjacent parts of the Sierra Nevada, California: Miscellaneous Field Studies Map 1273-A, 1 map ;47 x 23 cm. on sheet 91 x 112 cm.,
- Hastorf, C. A.; Tinsley, J. C., 1981, Maps and index of radiocarbon-dated samples from Southern California: Miscellaneous Field Studies Map 1294, 2 maps ;66 x 115 cm. +1 text (50 p. ; 28 cm.) folded in envelope 25 x 32 cm.,
- Hatch, N. L., Jr., 1981, Reconnaissance bedrock geologic map of the Ashfield Quadrangle, Franklin County, Massachusetts: Miscellaneous Field Studies Map 855, 1 map ;57 x 43 cm. on sheet 76 x 110 cm.,
- Helley, E. J.; Harwood, D. S.; Barker, J. A.; Griffen, E. A., 1981, Geologic map of the Battle Creek Fault zone and adjacent parts of the northern Sacramento Valley, California: Miscellaneous Field Studies Map 1298, 1 map ;89 x 136 cm. + 1 text (12 p. : map ; 28 cm.) folded in envelope 25 x 31 cm.,
- Hinkle, M. E., 1981, Geochemical maps of the Pusch Ridge Wilderness Area, Pima County, Arizona: Miscellaneous Field Studies Map 1356-A, 3 maps ;46 x 66 cm., on 2 sheets 88 x 110 cm., 108 x 107 cm. folded in envelope 25 x 32 cm.,
- Hintze, L. F., 1981, Preliminary geologic map of the Marjum Pass and Swasey Peak SW quadrangles, Millard County, Utah: Miscellaneous Field Studies Map 1332, 1 map ;58 x 90 cm.,
- Hintze, L. F., 1981, Preliminary geologic map of the Swasey Peak and Swasey Peak NW quadrangles, Millard County, Utah: Miscellaneous Field Studies Map 1333, 1 map ;58 x 90 cm.,
- Hintze, L. F., 1981, Preliminary geologic map of the Tunnel Spring Quadrangle, Millard County, Utah: Miscellaneous Field Studies Map 1334, 1 map ;58 x 45 cm.,
- Hintze, L. F., 1981, Preliminary geologic map of the Whirlwind Valley NW and Whirlwind Valley SW quadrangles, Millard County, Utah: Miscellaneous Field Studies Map 1335, 1 map ;115 x 45 cm.,
- Holser, A. F.; Rowland, R. W.; Goud, M. R., 1981, A compilation of subsea energy and mineral resources of the United States including its possessions and Trust Territory of the Pacific Islands: Miscellaneous Field Studies Map 1360, 1 map ;64 x 120 cm.,
- Hose, R. K., 1981, Geologic map of the Mount Moriah Further Planning (RARE II) Area, eastern Nevada: Miscellaneous Field Studies Map 1244-A, 1 map ;42 x 38 cm. on sheet 67 x 85 cm.,
- Hose, R. K.; Carlson, R. R.; Federspiel, F. E.; Huffsmith, J. D., 1981, Maps showing mineral resource potential of the Virgin Mountains Instant Study Area, Clark County, Nevada: Miscellaneous Field Studies Map 1204-B, 2 maps ;on sheet 65 x 86 cm. +text (2 p. ; 28 cm.),
- John, D. A.; Armin, R. A.; Moore, W. J.; Dohrenwend, J. C., 1981, Geologic map of the Freel and Dardanelles Further Planning Areas, Alpine and El Dorado counties, California: Miscellaneous Field Studies Map 1322-A, 1 map ;45 x 46 cm.,
- Johnson, R. C., 1981, Preliminary geologic map of the Desert Gulch Quadrangle, Garfield County, Colorado: Miscellaneous Field Studies Map 1328, 1 map ;57 x 45 cm. on sheet 84 x 95 cm.,
- Keith, W. J.; Seitz, J. F., 1981, Geologic map of the Hoover Wilderness and adjacent study area, Mono and Tuolumne counties, California: Miscellaneous Field Studies Map 1101-A, 1 map ;76 x 82 cm.,
- Kent, B. H.; Berlage, L. J., 1981, Geologic map and coal sections of the Reservoir Creek Quadrangle, Campbell County, Wyoming: Miscellaneous Field Studies Map 1336, 1 map ;58 x 42 cm. on sheet 75 x 108 cm. +stratigraphic sections on sheet 115 x 109 cm.,
- Kleinkopf, M. D., 1981, Aeromagnetic and generalized geologic map of the Choteau 1 degree by 2 degrees Quadrangle, Montana: Miscellaneous Field Studies Map 858-G, 1 map ;45 x 61 cm. on sheet 89 x 107 cm.,
- Kososki, B. A.; Cavit, C. D.; McHendrie, A. G., 1981, Free-air gravity map of the California outer continental shelf: Miscellaneous Field Studies Map 854, 1 map ;91 x 113 cm.,
- Kulik, D. M., 1981, Complete Bouguer gravity map of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona: Miscellaneous Field Studies Map 1162-G, 1 map ;78 x 84 cm.,
- Lane, M. E., 1981, Mines and prospects map of the Escalante Canyon Instant Study area, Garfield County, Utah: Miscellaneous Field Studies Map 1313-B, 1 map ;77 x 85 cm.,
- Le Compte, J. R., 1981, Maps showing interpretation of Landsat imagery of the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-H, 4 maps ;45 x 52 cm. and 33 x 37 cm. on 2 sheets 103 x 91 cm. and 66 x 100 cm.,
- Le Compte, J. R.; Steele, W. C., 1981, Maps showing interpretation of Landsat imagery of the Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-O, 2 maps ;45 x 100 cm.,
- Lee, D. E.; Friedman, Irving; Gleason, J. D., 1981, Map showing the oxygen isotope composition of granitoid rocks of the Basin-Range province: Miscellaneous Field Studies Map 1305, 1 map ;43 x 36 cm. on sheet 59 x 92 cm.,
- Lesure, F. G., 1981, Geology of the Shining Rock Wilderness, Haywood County, North Carolina: Miscellaneous Field Studies Map 1290-A, 1 map ;30 x 30 cm. on sheet 74 x 64 cm.,
- Lesure, F. G., 1981, Geochemical survey of Shining Rock Wilderness, Heywood County, North Carolina: Miscellaneous Field Studies Map 1290-B, 19 maps ;on sheet 140 x 110 cm.,
- Lesure, F. G., 1981, Map showing reconnaissance geochemistry in the gold-pyrophyllite belt of northwestern Moore County, North Carolina: Miscellaneous Field Studies Map 1301, -,
- Lesure, F. G., 1981, Geologic map of the Dolly Ann Roadless Area, Alleghany County, Virginia: Miscellaneous Field Studies Map 1358-A, 1 map :col. ;58 x 46 cm.,
- Light, T. D., 1981, Mines, prospects, mining claims, and sample localities of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona: Miscellaneous Field Studies Map 1162-B, 1 map ;77 x 85 cm.,
- Light, T. D., 1981, Mines, prospects, mining claims, and sample localities of the Dark Canyon Instant Study Area and vicinity, San Juan County, Utah: Miscellaneous Field Studies Map 1327-B, 1 map ;74 x 82 cm.,
- Lindsey, D. A.; Federspiel, F. E.; Huffsmith, J. D., 1981, Map showing mineral resource potential of the Big Snowies Wilderness and contiguous further planning areas (RARE II), Fergus and Golden Valley counties, Montana: Miscellaneous Field Studies Map 1243-E, 1 map ;55 x 58 cm. on sheet 73 x 114 cm.,
- Long, C. L., 1981, Aeromagnetic map of the Big Snowies Wilderness and contiguous RARE II study areas, Fergus, Golden Valley, and Wheatland counties, Montana: Miscellaneous Field Studies Map 1243-B, 1 map ;55 x 58 cm.,
- Long, C. L., 1981, Complete Bouguer gravity map of the Big Snowies Wilderness and contiguous RARE II study areas, Fergus, Golden Valley, and Wheatland counties, Montana: Miscellaneous Field Studies Map 1243-C, 1 map ;55 x 57 cm. on sheet 80 x 122 cm.,
- Ludington, Steve; Ellis, C. E., 1981, Mineral resource potential of the Hunter-Fryingpan Wilderness and the Porphyry Mountain Wilderness Study Area, Pitkin County, Colorado: Miscellaneous Field Studies Map 1236-D, 1 map ;71 x 77 cm. +1 text ([4] p. ; 28 cm.),
- MacLachlan, M. E.; Campbell, W. L.; Kleinkopf, M. D.; Larson, C. E., 1981, Geology and mineral resource appraisal of the Square Butte area, Chouteau County, Montana: Miscellaneous Field Studies Map 1370, 4 maps ;on sheet 90 x 115 cm.,
- Mapel, W. J.; Griffith, J. K., 1981, Geologic map and coal resources of the Thompson Creek area, Big Horn County, Montana: Miscellaneous Field Studies Map 1312, 1 map ;86 x 81 cm. +4 maps, coal sections, and tables on sheet 110 x 86 cm.,
- Martin, R. A., 1981, Geophysical surveys of the Hells Hole Further Planning Area (RARE II), Greenlee County, Arizona, and Grant County, New Mexico: Miscellaneous Field Studies Map 1344-B, 2 maps ;49 x 38 cm. on 1 sheet 86 x 102 cm.,
- Maxwell, C. H., 1981, Geologic map of the El Malpais Instant Study Area and adjacent areas, Valencia County, New Mexico: Miscellaneous Field Studies Map 1375-A, 1 map ;76 x 74 cm. folded in envelope 25 x 31 cm.,
- Maxwell, C. H., 1981, Aeromagnetic map of the El Malpais Instant Study Area and adjacent areas, Valencia County, New Mexico: Miscellaneous Field Studies Map 1375-B, 1 map ;76 x 74 cm. folded in envelope 25 x 32 cm.,
- McDowell, R. C., 1981, Correlation chart for units on the geologic map of Kentucky: Miscellaneous Field Studies Map 1291, 1 chart ;on sheet 90 x 56 cm.,
- McKee, E. H.; Donahoe, J. L., 1981, Geologic map of the Benton Range Further Planning (RARE II) Area, Mono County, California: Miscellaneous Field Studies Map 1317-A, 1 map ;44 x 37 cm. on sheet 61 x 81 cm.,
- McKee, E. H.; Howe, R. A., 1981, Geologic map of the Mokelumne Wilderness and contiguous RARE II Further Planning Areas, central Sierra Nevada, California: Miscellaneous Field Studies Map 1201-A, 1 map ;69 x 69 cm.,
- McLaughlin, R. J.; Sorg, D. H.; Ohlin, H. N.; Beutner, E. C., 1981, Map showing mineral-resource potential of the King Range and Chemise Mountain Instant Study Areas, Humboldt and Mendocino counties, California: Miscellaneous Field Studies Map 1196-C, 5 maps ;on sheet 99 x 52 cm. +1 text (20 p. ; 28 cm.),
- McLellan, M. W., 1981, Geologic map and coal resources of the Box Elder Creek Quadrangle, Powder River County, Montana: Miscellaneous Field Studies Map 1297, 1 map ;58 x 41 cm. on sheet 93 x 144 cm.,
- McLellan, Marguerite W., 1981, Geologic map and coal resources of the Leslie Creek quadrangle, Powder River County, Montana: Miscellaneous Field Studies Map 1296, 1 map ;58 x 41 cm. on sheet 100 x 142 cm.,
- Miller, M. H.; Thomson, K. C.; Chesson, S. A., 1981, Geologic map of the Hercules Glades Wilderness and adjacent area, Taney County, Missouri: Miscellaneous Field Studies Map 1377-A, 1 map ;28 x 31 cm. on sheet 61 x 73 cm. folded in envelope 25 x 31 cm.,
- Milton, N. M.; Madura, D. P., 1981, Map showing vegetation distribution in the central part of the East Tintic Mountains, Utah: Miscellaneous Field Studies Map 1195, 1 map ;53 x 39 cm.,
- Nelson, S. W.; Grybeck, D. J., 1981, Map showing distribution of metamorphic rocks in the Survey Pass Quadrangle, Brooks Range, Alaska: Miscellaneous Field Studies Map 1176-C, 1 map ;45 x 52 cm. on sheet 106 x 88 cm. folded in envelope 25 x 32 cm.,
- Nuccio, V. F.; Johnson, R. C., 1981, Map showing drill stem test and perforation recoveries of the Upper Cretaceous Mesaverde Group, Piceance Creek basin, Colorado: Miscellaneous Field Studies Map 1359, 1 map ;92 x 84 cm.,
- O'Sullivan, R. B.; Wahl-Pierce, Frances; Arbelbide, S. J., 1981, Preliminary geologic map of the McCarthy Gulch Quadrangle, Rio Blanco and Garfield Counties, Colorado: Miscellaneous Field Studies Map 860, 1 map ;57 x 45 cm. on sheet 81 x 129 cm.,
- Oldale, R. N.; Eskenasy, D. M.; Lian, N. C., 1981, A geologic profile of the Sankaty Head Cliff, Nantucket Island, Massachusetts: Miscellaneous Field Studies Map 1304, 1 profile ;on sheet 49 x 74 cm.,
- Otton, J. K.; Light, T. D.; Shride, A. F.; Bergquist, J. R.; Wrucke, C. T.; Theobald, P. K.; Duval, J. S.; Wilson, D. M., 1981, Map showing mineral resource potential of the Sierra Ancha Wilderness and Salome Study Area, Gila County, Arizona: Miscellaneous Field Studies Map 1162-H, 1 map ;67 x 97 cm. +1 text (6 p. : map ; 28 cm.) folded in envelope 25 x 32 cm.,
- Page, N. J.; Moring, Barry; Gray, Floyd; Cannon, Jerome; Blair, W. N., 1981, Reconnaissance geologic map of the Selma Quadrangle, Josephine County, Oregon: Miscellaneous Field Studies Map 1349, 1 map ;44 x 33 cm. on sheet 82 x 85 cm.,
- Page, Norman J.; Gray, Floyd; Cannon, J. K.; Foose, M. P.; Lipin, Bruce; Moring, B. C.; Nicholson, S. W.; Sawlin, M. G.; Till, A.lison, Ziemianski, W. P., 1981, Geologic map of the Kalmiopsis Wilderness Area, Oregon: Miscellaneous Field Studies Map 1240-A, 1 map ;89 x 55 cm.,
- Pampeyan, E. H.; Harsh, P. W.; Coakley, J. M., 1981, Preliminary map showing recently active breaks along the Maacama Fault zone between Hopland and Laytonville, Mendocino County, California: Miscellaneous Field Studies Map 1217, Two sheets,
- Paull, C. K.; Dillon, W. P., 1981, Appearance and distribution of the gas hydrate reflection in the Blake Ridge region, offshore southeastern United States: Miscellaneous Field Studies Map 1252, 1 map ;56 x 48 cm. on sheet 91 x 104 cm.,
- Peterson, J. A.; Martin, L. M.; Esparza, L. E.; Cwick, G. J., 1981, Mineral resource potential of the Baker-Cypress BLM Instant Study Area and Timbered Crater Forest Service Further Planning (RARE II) Areas, Modoc, Shasta, and Siskiyou Counties, California: Miscellaneous Field Studies Map 1214-B, Sheet 27 inches x 33 inches,
- Pitkin, J. A.; Duval, J. S., 1981, Interpretation of an aerial radiometric survey of the San Gorgonio Wilderness Area and vicinity, San Bernardino County, California: Miscellaneous Field Studies Map 1161-B, 7 maps ;29 x 50 cm. on 2 sheets 89 x 109 cm.,
- Plouff, Donald; McKee, E. H., 1981, Aeromagnetic map of the Mokelumne Wilderness and contiguous Rare II further planning areas, central Sierra Nevada, California: Miscellaneous Field Studies Map 1201-B, 1 map ;69 x 69 cm.,
- Popenoe, Peter; Butman, Bradford; Paull, C. K.; Ball, M. M.; Pfirman, S. L., 1981, Interpretation of graphic data on potential geologic hazards on the southeastern United States Atlantic continental shelf: Miscellaneous Field Studies Map 1276, 8 maps, 7 photographs, 15 seismic reflection records on 3 sheets ;140 x 109 cm. or smaller.,
- Pratt, W. P.; Mosier, E. L.; Ellis, Clarence, 1981, Geology and mineral resource potential of the Paddy Creek Wilderness Study Area, Texas County, Missouri: Miscellaneous Field Studies Map 1286, 1 map ;37 x 47 cm.,
- Ratte, J. C.; Hedlund, D. C., 1981, Geologic map of the Hells Hole further planning area (RARE II) Greenlee County, Arizona, and Grant County, New Mexico: Miscellaneous Field Studies Map 1344-A, 1 map ;45 x 26 cm. on sheet 69 x 99 cm. folded in envelope 25 x 32 cm.,
- Reagor, B. G.; Stover, C. W.; Algermissen, S. T., 1981, Seismicity map of the state of South Dakota: Miscellaneous Field Studies Map 1325, Sheet 25 inches x 43 inches,
- Reagor, B. G.; Stover, C. W.; Algermissen, S. T., 1981, Seismicity map of the state of North Dakota: Miscellaneous Field Studies Map 1326, Sheet 20 inches x 42 inches,
- Reagor, B. Glen.; Stover, Carl W.; Algermissen, Sylvester Theodore, 1981, Seismicity map of the state of Nebraska: Miscellaneous Field Studies Map 1350, 1 map ;35 x 75 cm., on sheet 71 x 104 cm., folded in envelope 30 x 24 cm.,
- Richter, D. H.; Lawrence, V. A., 1981, Geologic map of the Gila-San Francisco Wilderness Study Area, Graham and Greenlee Counties, Arizona: Miscellaneous Field Studies Map 1315-A, 1 map ;48 x 57 cm.,
- Robb, J. M.; Kirby, J. R.; Hampson, J. C., 1981, Bathymetric map of the continental slope and uppermost continental rise between Lindenkohl Canyon and South Toms Canyon, offshore Eastern United States: Miscellaneous Field Studies Map 1270, 1 map ;75 x 69 cm.,
- Roehler, H. W.; Trudell, L. G., 1981, Surface-subsurface correlations of the Eocene Green River Formation, on the West flank of the Rock Springs Uplift, Sweetwater County, Wyoming: Miscellaneous Field Studies Map 1308, 6 stratigraphic sections, 1 map ;on sheet 85 x 131 cm. folded in envelope 25 x 32 cm.,
- Rowley, P. D.; Cunningham, C. G.; Kaplan, A. M., 1981, Geologic map of the Monroe SE Quadrangle, Sevier and Piute counties, Utah: Miscellaneous Field Studies Map 1331, 1 map ;58 x 46 cm.,
- Rowley, P. D.; Steven, T. A.; Kaplan, A. M., 1981, Geologic map of the Monroe NE Quadrangle, Sevier County, Utah: Miscellaneous Field Studies Map 1330, 1 map ;58 x 46 cm.,
- Rowley, P. D.; williams, P. L.; Anderson, J. J.; Kaplan, A. M., 1981, Geologic map of the Marysvale NE Quadrangle, Piute County, Utah: Miscellaneous Field Studies Map 1329, 1 map ;58 x 46 cm. on sheet 75 x 126 cm.,
- Ryer, T. A., 1981, Cross section of the Ferron sandstone member of the Mancos Shale in the Emery coal field, Emery and Sevier counties, central Utah: Miscellaneous Field Studies Map 1357, 1 map, 1 cross section ;on sheet 57 x 118 cm.,
- Schweinfurth, S. P.; Trent, V. A.; Helton, E. D., 1981, Geologic map of the Sipsey Wilderness and additions, Lawrence and Winston counties, Alabama: Miscellaneous Field Studies Map 1288-B, 2 maps ;37 x 53 cm. on sheet 104 x 102 cm.,
- Shideler, G. L.; Stelting, C. E.; McGowen, J. H., 1981, Maps showing textural characteristics of benthic sediments in the Corpus Christi Bay estuarine system, south Texas: Miscellaneous Field Studies Map 1275, 5 maps ;on sheet 91 x 89 cm.,
- Sigleo, W. R.; Randall, A. H., 1981, Geologic map of the Troublesome Roadless Area, McCreary County, Kentucky: Miscellaneous Field Studies Map 1341-A, 2 maps ;19 x 30 cm. on sheet 57 x 83 cm.,
- Smith, M. C., 1981, Structure contours and overburden on the top of the Mahogany bed, Green River Formation, eastern part of the Uinta Basin, Uintah, Duchesne, and Carbon counties, Utah, and Rio Blanco County, Colorado: Miscellaneous Field Studies Map 1311, 1 map ;70 x 68 cm.,
- Speed, R. C., 1981, Preliminary geologic map of the Sodaville quadrangle, Mineral County, Nevada: Miscellaneous Field Studies Map 1300, -,
- Stewart, J. H.; Johannesen, D. C.; Dohrenwend, J. C., 1981, Geologic map of the Powell Mountain Quadrangle, Mineral County, Nevada: Miscellaneous Field Studies Map 1268, 1 map ;45 x 35 cm.,
- Stewart, J. H.; Johannesen, D. C.; Dohrenwend, J. C., 1981, Geologic map of the Hawthorne Quadrangle, Mineral County, Nevada: Miscellaneous Field Studies Map 1277, 1 map ;44 x 35 cm. on sheet 72 x 87 cm.,
- Stewart, J. H.; Reynolds, M. W.; Johannesen, D. C.; Dohrenwend, J. C., 1981, Geologic map of the Mount Grant Quadrangle, Lyon and Mineral counties, Nevada: Miscellaneous Field Studies Map 1278, 1 map ;45 x 35 cm. on sheet 65 x 96 cm.,
- Stone, J. R.; London, E. H., 1981, Surficial geologic map of the Westport and Sherwood Point quadrangles, Connecticut: Miscellaneous Field Studies Map 1295, 1 map ;85 x 44 cm.,
- Stover, C. W.; Barnhard, L. M.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the states of Connecticut and Rhode Island: Miscellaneous Field Studies Map 1283, 1 map ;17 x 25 cm. on sheet 69 x 68 cm.,
- Stover, C. W.; Barnhard, L. M.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the State of Maine: Miscellaneous Field Studies Map 1284, 1 map ;54 x 35 cm. on sheet 78 x 103 cm.,
- Stover, C. W.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the states of Delaware and Maryland: Miscellaneous Field Studies Map 1281, 1 map ;23 x 41 on sheet 55 x 83 cm.,
- Stover, C. W.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the State of Minnesota: Miscellaneous Field Studies Map 1323, 1 map ;67 x 59 cm.,
- Stover, C. W.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the State of Iowa: Miscellaneous Field Studies Map 1324, 1 map ;36 x 55 cm.,
- Stover, C. W.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the State of Kansas: Miscellaneous Field Studies Map 1351, 1 map ;37 x 67 cm.,
- Stover, C. W.; Reagor, B. G.; Algermissen, S. T.; Lawson, J. E., Jr., 1981, Seismicity map of the State of Oklahoma: Miscellaneous Field Studies Map 1352, 1 map ;39 x 78 cm. on sheet 83 x 102 cm.,
- Stover, Carl W.; Barmhard, L. M.; Reagor, B. G.; Algermissen, S. T., 1981, Seismicity map of the State of New York: Miscellaneous Field Studies Map 1282, 1 map ;58 x 70 cm. on sheet 71 x 147 cm.,
- Valentine, P. C., 1981, Continental margin stratigraphy along the U.S. Geological Survey seismic line 5; Long Island Platform and western Georges Bank Basin: Miscellaneous Field Studies Map 857, 5 sections, 2 maps, 1 table ;on 2 sheets 111 x 81 cm. and 113 x 99 cm.,
- Villalobos, H. A.; Hamm, L. W., 1981, Map showing mineral resource potential of the Paiute Instant (Primitive) Study Area, Mohave County, Arizona: Miscellaneous Field Studies Map 1160-D, 1 map ;88 x 65 cm. +1 text (5 p.; 28 cm.),
- Walker, G. W., 1981, Geologic map of the Deschutes Canyon Further Planning Area (RARE II), Jefferson and Deschutes counties, Oregon: Miscellaneous Field Studies Map 1303-A, 1 map ;48 x 42 cm.,
- Warlow, R. C., 1981, Geologic map, cross sections, generalized columnar section, and structure contour map of the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia: Miscellaneous Field Studies Map 1267-A, 3 maps ;on sheet 71 x 98 cm.,
- Warlow, R. C.; Behum, P. T.; Mory, P. C., 1981, Maps showing mineral resource potential of the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia: Miscellaneous Field Studies Map 1267-E, 10 maps ;39 x 31 cm. on 2 sheets 95 x 131 cm. and 112 x 122 cm. +text (12 p. ; 28 cm.),
- Warren, C. R., 1981, Surficial geologic map of the Goshen Quadrangle, Franklin and Hampshire counties, Massachusetts: Miscellaneous Field Studies Map 1292, 1 map ;58 x 43 cm. on sheet 79 x 122 cm.,
- Weed, E. G., 1981, Oil and gas resources of the Cheat Mountain Further Planning Area (RARE II), Randolph County, West Virginia: Miscellaneous Field Studies Map 1271-B, 3 maps, 1 geologic column ;on sheet 109 x 83 cm.,
- Weed, E. G. A., 1981, Oil and gas resources of the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia: Miscellaneous Field Studies Map 1267-D, 3 maps, 1 geologic column ;on sheet 108 x 88 cm.,
- Weir, G. W., 1981, Geologic map of the Grand Gulch Instant Study Area, San Juan County, Utah: Miscellaneous Field Studies Map 1318, 1 map ;67 x 72 cm.,
- Weir, G. W.; Beard, L. S., 1981, Geologic map of the Escalante Canyon Instant Study Area, Garfield County, Utah: Miscellaneous Field Studies Map 1313-A, 1 map ;76 x 85 cm.,
- Weir, G. W.; Beard, L. S., 1981, Geologic map of the Phipps-Death Hollow Instant Study Area, Garfield County, Utah: Miscellaneous Field Studies Map 1314, 1 map ;44 x 42 cm.,
- Weir, G. W.; Beard, L. S., 1981, Geologic map of the Box-Death Hollow Further Planning Area (RARE II), Garfield County, Utah: Miscellaneous Field Studies Map 1319-A, 1 map ;39 x 69 cm. on sheet 85 x 76 cm.,
- Whipple, J. W.; Bregman, M. L., 1981, Geologic map of the Rogers Pass Quadrangle, Lewis and Clark County, Montana: Miscellaneous Field Studies Map 1309, 1 map ;58 x 40 cm.,
- Wilson, F. H.; Gaum, W. C.; Herzon, P. L., 1981, Map and tables showing geochronology and whole-rock geochemistry, Chignik and Sutwik Island quadrangles, Alaska: Miscellaneous Field Studies Map 1053-M, 1 map ;44 x 112 cm. +2 sheets 70 x 84 cm., 77 x 105 cm.,
- Witkind, I. J.; Huff, L. C.; Ridenour, James; Conyac, M. D.; McCulloch, R. B., 1981, Mineral resource potential of the Centennial Mountains Wilderness Study Area and contiguous areas, Idaho and Montana: Miscellaneous Field Studies Map 1342-B, 1 map ;45 x 138 cm. + 1 text ([10] p. ; 28 cm.),
- Wright, N. A., 1981, Reconnaissance geochemistry of the Otter Creek Wilderness, Randolph and Tucker counties, West Virginia: Miscellaneous Field Studies Map 1267-B, 2 maps ;on sheet 75 x 86 cm.,
- Yehle, L. A., 1981, Preliminary surficial geologic map of the Valdez B-1 Quadrangle, Alaska: Miscellaneous Field Studies Map 1364, 1 map ;44 x 32 cm. on sheet 60 x 91 cm.,
- Yerkes, R. F.; Greene, H. G.; Tinsley, J. C.; Lajoie, K. R., 1981, Maps showing seismotectonic setting of the Santa Barbara channel area, California: Miscellaneous Field Studies Map 1169, 2 maps ;on sheet 99 x 84 cm. +1 text (25 p. : ill. ; 28 cm.),