- Amos, Dewey Harold, 1966, Geologic map of the Golconda quadrangle, Kentucky-Illinois, and the part of the Brownfield quadrangle in Kentucky: Geologic Quadrangle 546, 1 map :col. ;83 x 106 cm.,
- Amos, Dewey Harold; Wolfe, Edward W., 1966, Geologic map of the Little Cypress quadrangle, Kentucky- Illinois: Geologic Quadrangle 554, 1 map :col. ;84 x 86 cm.,
- Baker, Arthur A., 1966, Geologic map of the Brighton quadrangle, Utah: Geologic Quadrangle 534, 1 map.,
- Becraft, George Earle, 1966, Geologic map of the Wilmont Creek quadrangle, Ferry and Stevens Counties, Washington: Geologic Quadrangle 538, 1 map.,
- Blade, Lawrence Vernon, 1966, Geologic map of parts of the Hamlin and Paris Landing quadrangles, western Kentucky: Geologic Quadrangle 498, 1 map :col. ;on sheet 78 x 84 cm., folded in envelope 30 x 24 cm.,
- Brokaw, Arnold Leslie; Heidrick, Tom, 1966, Geologic map and sections of the Giroux Wash quadrangle, White Pine County, Nevada: Geologic Quadrangle 476, 1 map :col. ;58 x 45 cm., on sheet 81 x 63 cm.,
- Brown, C. Ervin; Thayer, Thomas Prence, 1966, Geologic map of the Mount Vernon quadrangle, Grant County, Oregon: Geologic Quadrangle 548, 1 map.,
- Burbank, Wilbur Swett; Luedke, Robert G., 1966, Geologic map of the Telluride quadrangle, southwestern Colorado: Geologic Quadrangle 504, 1 map :col. ;58 x 46 cm. folded to 26 x 18 cm. in envelope 30 x 24 cm.,
- Bush, Alfred Lerner; Bromfield, Calvin Stanton, 1966, Geologic map of the Dolores Peak quadrangle, Dolores and San Miguel Counties, Colorado: Geologic Quadrangle 536, 1 map :col. ;58 x 46 cm., on sheet 81 x 94 cm., folded to 27 x 19 cm., in envelope 30 x 24 cm.,
- Byers, F. M., 1966, Geologic map of the Buckboard Mesa quadrangle, Nye County, Nevada: Geologic Quadrangle 552, 1 map :col. ;on sheet 87 x 91 cm., folded in envelope 30 x 24 cm.,
- Calvert, Ronald H., 1966, Geologic map of the Maceo quadrangle, Daviess and Hancock Counties, Kentucky: Geologic Quadrangle 570, 1 map :col. ;78 x 74 cm.,
- Carr, Wilfred James; Quinlivan, W. D., 1966, Geologic map of the Timber Mountain quadrangle, Nye County, Nevada: Geologic Quadrangle 503, 1 map.,
- Cattermole, John Mark, 1966, Geologic map of the Fountain City quadrangle, Knox County, Tennessee: Geologic Quadrangle 513, 1 map.,
- Cattermole, John Mark, 1966, Geologic map of the John Sevier quadrangle, Knox County, Tennessee: Geologic Quadrangle 514, 1 map.,
- Cattermole, John Mark, 1966, Geologic map of the Edmonton quadrangle, Metcalfe County, Kentucky: Geologic Quadrangle 523, 1 map :col. ;77 x 88 cm.,
- Cattermole, John Mark, 1966, Geologic map of the Sulphur Well quadrangle, Metcalfe and Green Counties, Kentucky: Geologic Quadrangle 555, 1 map :col. ;78 x 88 cm.,
- Colton, Roger B.; Hartshorn, Joseph H., 1966, Bedrock geologic map of the West Springfield quadrangle, Massachusetts and Connecticut: Geologic Quadrangle 537, 1 map.,
- Colton, Roger B.; McKay, E. J., 1966, Geologic map of the Yucca Flat quadrangle, Nye and Lincoln Counties, Nevada: Geologic Quadrangle 582, 1 map.,
- Crittenden, Max D.; Calkins, Frank C.; Sharp, Byron J., 1966, Geologic map of the Park City West quadrangle, Utah: Geologic Quadrangle 535, 1 map.,
- Crowder, D. F.; Tabor, R. W.; Ford, Arthur B., 1966, Geologic map of the Glacier Peak quadrangle, Snohomish and Chelan Counties, Washington: Geologic Quadrangle 473, 1 map :col. ;on sheet 83 x 126 cm., folded in envelope 30 x 24 cm.,
- Dixon, H. Roberta; Pessl, Fred, 1966, Geologic map of the Hampton quadrangle, Windham County, Connecticut: Geologic Quadrangle 468, 1 map.,
- Dobrovolny, Ernest; Ferm, John C.; Eroskay, S. O., 1966, Geologic map of parts of the Greenup and Ironton quadrangles, Greenup and Boyd Counties, Kentucky: Geologic Quadrangle 532, 1 map.,
- Ekren, E. B., 1966, Geologic map of the Silent Butte quadrangle, Nye County, Nevada: Geologic Quadrangle 493, 1 map :col. ;on sheet 82 x 72 cm., folded in envelope 30 x 24 cm.,
- Englund, Kenneth John, 1966, Geologic map of the Ketchen quadrangle, Tennessee-Kentucky: Geologic Quadrangle 500, 1 map :col. ;83 x 103 cm.,
- Englund, Kenneth John; DeLaney, A. O., 1966, Geologic map of the Bruin quadrangle, Elliott and Carter Counties, Kentucky: Geologic Quadrangle 522, 1 map.,
- Englund, Kenneth John; Delaney, A. Otis, 1966, Geologic map of the Isonville quadrangle, eastern Kentucky: Geologic Quadrangle 501, 1 map :col. ;79 x 87 cm.,
- Englund, Kenneth John; Delaney, A. Otis., 1966, Geologic map of the Sandy Hook quadrangle, Elliott and Morgan Counties, Kentucky: Geologic Quadrangle 521, 1 map :col. ;78 x 91 cm.,
- Erickson, Ralph Leroy, 1966, Geologic map of part of the Friendship quadrangle, Lewis and Greenup Counties, Kentucky: Geologic Quadrangle 526, 1 map.,
- Fassett, James E.; Hinds, Jim S., 1966, Geologic map of the Mesa Portales quadrangle, Sandoval County, New Mexico: Geologic Quadrangle 590, 1 map :col. ;56 x 47 cm. on sheet 79 x 79 cm. folded to 27 x 20 cm. in envelope 30 x 24 cm.,
- Finch, Warren Irvin, 1966, Geologic map of the Paducah West and part of the Metropolis quadrangles, Kentucky-Illinois: Geologic Quadrangle 557, 1 map :col. ;on sheet 84 x 110 cm. fold. in envelope 30 x 24 cm.,
- Finch, Warren Irvin; Minard, James P., 1966, Geologic map of the Farmington quadrangle, Graves County, Kentucky: Geologic Quadrangle 530, 1 map.,
- Finnell, Tommy Lee, 1966, Geologic map of the Chediski Peak quadrangle, Navajo County, Arizona: Geologic Quadrangle 544, 1 map.,
- Finnell, Tommy Lee, 1966, Geologic map of the Cibecue quadrangle, Navajo County, Arizona: Geologic Quadrangle 545, 1 map.,
- Fox, Kenneth F.; Olive, Wilds W., 1966, Geologic map of the Birmingham Point quadrangle, western Kentucky: Geologic Quadrangle 471, 1 map.,
- Gaskill, David L.; Godwin, Larry H., 1966, Geologic map of the Marcellina Mountain quadrangle, Gunnison County, Colorado: Geologic Quadrangle 511, 1 map :col. ;58 x 45 cm., folded to 28 x 21 cm., in envelope 30 x 24 cm.,
- Gaskill, David L.; Godwin, Larry H., 1966, Geologic map of the Marble quadrangle, Gunnison and Pitkin Counties, Colorado: Geologic Quadrangle 512, 1 map :col. ;58 x 45 cm., on sheet 81 x 91 cm., folded to 28 x 18 cm., in envelope 30 x 24 cm.,
- Gildersleeve, Benjamin, 1966, Geologic map of the Homer quadrangle, Logan County, Kentucky: Geologic Quadrangle 549, 1 map :col. ;77 x 88 cm.,
- Greene, Robert C., 1966, Geologic map of the Valley View quadrangle, central Kentucky: Geologic Quadrangle 470, 1 map.,
- Greene, Robert C., 1966, Geologic map of the Richmond South quadrangle, Madison County, Kentucky: Geologic Quadrangle 479, 1 map :col. ;58 x 46 cm., on sheet 76 x 92 cm., folded in envelope 30 x 24 cm.,
- Haynes, Donald Duane, 1966, Geologic map of the Horse Cave quadrangle, Barren and Hart Counties, Kentucky: Geologic Quadrangle 558, 1 map :col. ;79 x 84 cm.,
- Hinds, Jim S.; Fassett, James E., 1966, Geologic map of the Johnson Trading Post quadrangle, Sandoval County, New Mexico: Geologic Quadrangle 591, 1 map :col. ;58 x 47 cm. on sheet 76 x 76 cm. folded to 26 x 19 cm. in envelope 30 x 24 cm.,
- Hyden, Harold Julius, 1966, Geologic map of the Pierce Reservoir quadrangle, Albany and Carbon Counties, Wyoming: Geologic Quadrangle 510, 1 map.,
- Hyden, Harold Julius, 1966, Geologic map of the McFadden quadrangle, Carbon County, Wyoming: Geologic Quadrangle 533, 1 map.,
- Hyden, Harold Julius, 1966, Geologic map of the Bengough Hill quadrangle, Albany and Carbon Counties, Wyoming: Geologic Quadrangle 579, 1 map.,
- Jahns, Richard Henry, 1966, Surficial geologic map of the Greenfield quadrangle, Franklin County, Massachusetts: Geologic Quadrangle 474, 1 map :col. ;on sheet 73 x 87 cm., folded in envelope 30 x 24 cm.,
- Jenkins, Evan Cramer, 1966, Geologic map of the Milo quadrangle, Kentucky-West Virginia, and the part of the Webb quadrangle in Kentucky: Geologic Quadrangle 543, 1 map.,
- Kehn, Thomas M., 1966, Geologic map of the Providence quadrangle, western Kentucky: Geologic Quadrangle 491, 1 map :col. ;82 x 97 cm.,
- Kehn, Thomas M., 1966, Geologic map of the Dawson Springs quadrangle, western Kentucky: Geologic Quadrangle 573, 1 map :col. ;76 x 90 cm.,
- Kepferle, Roy Clark, 1966, Geologic map of the Howardstown quadrangle, central Kentucky: Geologic Quadrangle 505, 1 map :col. ;84 x 93 cm.,
- Kepferle, Roy Clark, 1966, Geologic map of the Elizabethtown quadrangle, Hardin and Larue Counties, Kentucky: Geologic Quadrangle 559, 1 map :col. ;78 x 103 cm.,
- Kistler, Ronald Wayne, 1966, Geologic map of the Mono Craters quadrangle, Mono and Tuolumne Counties, California: Geologic Quadrangle 462, 1 map.,
- Klemic, Harry, 1966, Geologic map of the Allensville quadrangle, Kentucky-Tennessee: Geologic Quadrangle 502, 1 map.,
- Klemic, Harry, 1966, Geologic map of the Guthrie quadrangle, Kentucky-Tennessee: Geologic Quadrangle 539, 1 map.,
- Klemic, Harry, 1966, Geologic map of the Hammacksville quadrangle, Kentucky-Tennessee: Geologic Quadrangle 540, 1 map.,
- Klemic, Harry, 1966, Geologic map of the Oak Grove quadrangle, Kentucky-Tennessee: Geologic Quadrangle 565, 1 map :col. ;77 x 74 cm.,
- Klemic, Harry, 1966, Geologic map of the Herndon quadrangle, Kentucky-Tennessee: Geologic Quadrangle 572, 1 map :col. ;77 x 71 cm.,
- Koteff, Carl, 1966, Surficial geologic map of the Clinton quadrangle, Worcester County, Massachusetts: Geologic Quadrangle 567, 1 map.,
- Lewis, Richard Quintin; Thaden, Robert E., 1966, Geologic map of the Albany quadrangle, Kentucky-Tennessee: Geologic Quadrangle 550, 1 map :col. ;77 x 92 cm.,
- Lipman, Peter W., 1966, Geologic map of the Thirsty Canyon SE quadrangle, Nye County, Nevada: Geologic Quadrangle 489, 1 map :col. ;58 x 47 cm., on sheet 86 x 97 cm., folded in envelope 30 x 24 cm.,
- McAndrews, Harry, 1966, Geologic map of the Lake Ione quadrangle, Albany County, Wyoming: Geologic Quadrangle 508, 1 map.,
- Moore, Frank Baker, 1966, Geologic map of the Tonieville quadrangle, Larue and Hardin Counties, Kentucky: Geologic Quadrangle 560, 1 map :col. ;82 x 86 cm.,
- Morris, Robert Hamilton, 1966, Geologic map of the Head of Grassy quadrangle, Lewis County, Kentucky: Geologic Quadrangle 484, 1 map :col. ;58 x 46 cm., on sheet 78 x 92 cm., folded in envelope 30 x 24 cm.,
- Morris, Robert Hamilton, 1966, Geologic map of parts of the Concord and Buena Vista quadrangles, Lewis County, Kentucky: Geologic Quadrangle 525, 1 map.,
- Mudge, Melville Rhodes, 1966, Geologic map of the Patricks Basin quadrangle, Teton and Lewis and Clark Counties, Montana: Geologic Quadrangle 453, 1 map.,
- Mudge, Melville Rhodes, 1966, Geologic map of the Pretty Prairie quadrangle, Lewis and Clark County, Montana: Geologic Quadrangle 454, 1 map.,
- Mudge, Melville Rhodes, 1966, Geologic map of the Glenn Creek quadrangle, Lewis and Clark and Teton Counties, Montana: Geologic Quadrangle 499, 1 map :col. ;58 x 39 cm., sheet 89 x 90 cm.,
- Myers, Donald A., 1966, Geologic map of the Tajique quadrangle, Torrance and Bernalillo Counties, New Mexico: Geologic Quadrangle 551, 1 map.,
- Nelson, Clemens Arvid, 1966, Geologic map of the Waucoba Mountain quadrangle, Inyo County, California: Geologic Quadrangle 528, 1 map.,
- Nelson, Clemens Arvid, 1966, Geologic map of the Blanco Mountain quadrangle, Inyo and Mono Counties, California: Geologic Quadrangle 529, 1 map.,
- O'Connor, Joseph T.; Anderson, R. Ernest; Lipman, Peter W., 1966, Geologic map of the Thirsty Canyon quadrangle, Nye County, Nevada: Geologic Quadrangle 524, 1 map :col. ;57 x 44 cm., on sheet 83 x 91 cm., folded in envelope 30 x 24 cm.,
- Olive, Wilds W., 1966, Geologic map of the Paducah East quadrangle in western Kentucky: Geologic Quadrangle 531, 1 map.,
- Olive, Wilds W., 1966, Geologic map of the Heath quadrangle, McCracken and Ballard Counties, Kentucky: Geologic Quadrangle 561, 1 map :col. ;78 x 94 cm.,
- Outerbridge, William F., 1966, Geologic map of the Paintsville quadrangle, Johnson and Floyd Counties, Kentucky: Geologic Quadrangle 495, 1 map :col. ;58 x 46 cm., on sheet 81 x 86 cm., folded in envelope 30 x 24 cm.,
- Owens, James Patrick; Minard, James P., 1966, Pre-Quaternary geology of the Allentown quadrangle, New Jersey: Geologic Quadrangle 566, 1 map.,
- Palmer, James Edward, 1966, Geologic map of the Dalton quadrangle, western Kentucky: Geologic Quadrangle 490, 1 map :col. ;58 x 46 cm., on sheet 83 x 102 cm., folded in envelope 30 x 24 cm.,
- Patterson, E. D., 1966, Geologic map of the Montaqua quadrangle, Carbon and Stillwater Counties, Montana: Geologic Quadrangle 580, 1 map.,
- Peck, John H.; Pierce, Kenneth Lee, 1966, Geologic map of part of the Manchester Islands quadrangle, Lewis County, Kentucky: Geologic Quadrangle 581, 1 map.,
- Pessl, Fred, 1966, Surficial geologic map of the Fitchville quadrangle, New London County, Connecticut: Geologic Quadrangle 485, 1 map :col. ;58 x 44 cm., on sheet 82 x 76 cm., folded in envelope 30 x 24 cm. +text (4 p.; 27 cm.),
- Peterson, Warren Lee, 1966, Geologic map of the New Haven quadrangle, Nelson and Larue Counties, Kentucky: Geologic Quadrangle 506, 1 map :col. ;80 x 92 cm.,
- Peterson, Warren Lee, 1966, Geologic map of the Nelsonville quadrangle, central Kentucky: Geologic Quadrangle 564, 1 map :col. ;77 x 89 cm.,
- Pierce, William Gamewell, 1966, Geologic map of the Cody quadrangle, Park County, Wyoming: Geologic Quadrangle 542, 1 map :col. ;44 x 32 cm. on sheet 81 x 68 cm. folded in envelope 30 x 24 cm.,
- Rice, Charles L., 1966, Geologic map of the Martin quadrangle, Floyd County, Kentucky: Geologic Quadrangle 563, 1 map :col. ;79 x 94 cm.,
- Rohrer, Willis L., 1966, Geologic map of the Kisinger Lakes quadrangle, Fremont County, Wyoming: Geologic Quadrangle 527, 1 map.,
- Santos, Elmer S., 1966, Geologic map of the San Lucas Dam quadrangle, McKinley County, New Mexico: Geologic Quadrangle 516, 1 map.,
- Santos, Elmer S., 1966, Geologic map of the San Mateo quadrangle, McKinley and Valencia Counties, New Mexico: Geologic Quadrangle 517, 1 map :col. ;58 x 48 cm.,
- Santos, Elmer S.; Thaden, Robert E., 1966, Geologic map of the Ambrosia Lake quadrangle, McKinley County, New Mexico: Geologic Quadrangle 515, 1 map :col. ;58 x 48 cm.,
- Sargent, Kenneth A., 1966, Geologic map of the Quartet Dome quadrangle, Nye County, Nevada: Geologic Quadrangle 496, 1 map :col. ;58 x 47 cm., on sheet 88 x 85 cm., folded in envelope 30 x 24 cm.,
- Sharps, Joseph A., 1966, Geologic map of the Load quadrangle, Greenup County, Kentucky: Geologic Quadrangle 519, 1 map.,
- Shawe, Fred R., 1966, Geologic map of the Reedyville quadrangle, western Kentucky: Geologic Quadrangle 520, 1 map :col. ;80 x 88 cm.,
- Shawe, Fred R., 1966, Geologic map of the Dot quadrangle, Kentucky-Tennessee: Geologic Quadrangle 568, 1 map :col. ;78 x 74 cm.,
- Shawe, Fred R., 1966, Geologic map of the Adairville quadrangle, Kentucky-Tennessee: Geologic Quadrangle 569, 1 map :col. ;77 x 89 cm.,
- Simpson, Howard E., 1966, Bedrock geologic map of the New Britain quadrangle, Connecticut: Geologic Quadrangle 494, 1 map :col. ;58 x 44 cm., on sheet 84 x 63 cm., folded in envelope 30 x 24 cm.,
- Taylor, Alfred R., 1966, Geologic map of the Mannsville quadrangle, south-central Kentucky: Geologic Quadrangle 562, 1 map :col. ;76 x 89 cm.,
- Thaden, Robert E.; Lewis, Richard Quintin, 1966, Geologic map of the Jabez quadrangle, Russell and Wayne Counties, Kentucky: Geologic Quadrangle 483, 1 map :col. ;79 x 89 cm.,
- Thaden, Robert E.; Santos, Elmer S.; Ostling, Earl J., 1966, Geologic map of the Goat Mountain quadrangle, McKinley County, New Mexico: Geologic Quadrangle 518, 1 map :col. ;58 x 48 cm.,
- Thayer, Thomas Prence; Brown, C. Ervin, 1966, Geologic map of the Aldrich Mountain quadrangle, Grant County, Oregon: Geologic Quadrangle 438, 1 map.,
- Trace, Robert Denny, 1966, Geologic map of the Marion quadrangle, Crittenden and Caldwell Counties, Kentucky: Geologic Quadrangle 547, 1 map :col. ;80 x 92 cm.,
- Ulrich, George E., 1966, Geologic map of the Sharon Grove quadrangle, Todd and Logan Counties, Kentucky: Geologic Quadrangle 482, 1 map :col. ;76 x 85 cm.,
- Ulrich, George E., 1966, Geologic map of the Olmstead quadrangle, Todd and Logan Counties, Kentucky: Geologic Quadrangle 553, 1 map :col. ;79 x 87 cm.,
- Ulrich, George E., 1966, Geologic map of the Church Hill quadrangle, Christian County, Kentucky: Geologic Quadrangle 556, 1 map :col. ;78 x 84 cm.,
- Ulrich, George E.; Klemic, Harry, 1966, Geologic map of the Caledonia quadrangle, Trigg and Christian Counties, Kentucky: Geologic Quadrangle 604, 1 map :col. ;77 x 89 cm.,
- Whitlow, Jesse W.; West, Walter S., 1966, Geologic map of the Kieler quadrangle, Grant County, Wisconsin, and Jo Daviess County, Illinois: Geologic Quadrangle 487, 1 map :col. ;on sheet 85 x 81 cm. fold. in envelope 30 x 24 cm.,
- Whitlow, Jesse W.; West, Walter S., 1966, Geologic map of the Dickeyville quadrangle, Grant County, Wisconsin: Geologic Quadrangle 488, 1 map :col. ;58 x 43 cm., on sheet 79 x 92 cm., folded in envelope 30 x 24 cm.,
- Wilcox, Ray E.; Fisher, Richard V., 1966, Geologic map of the Monument quadrangle, Grant County, Oregon: Geologic Quadrangle 541, 1 map.,
- Wolcott, Don E.; Jenkins, Evan Cramer, 1966, Geologic map of the Meta quadrangle, Pike County, Kentucky: Geologic Quadrangle 497, 1 map :col. ;on sheet 83 x 92 cm., folded in envelope 30 x 24 cm.,
- Zen, E-an; Hartshorn, Joseph H., 1966, Geologic map of the Bashbish Falls quadrangle, Massachusetts, Connecticut, and New York: Geologic Quadrangle 507, 1 map.,
