- Bradley, W. H., 1961, Geologic map of a part of southwestern Wyoming and adjacent States: IMAP 332, 1 map :col. ;86 x 131 cm. folded to 28 x 20 cm. in envelope 30 x 24 cm.,
- Brankamp, R. A.; Ramirez, L. F., 1961, Geology of the central Persian Gulf quadrangle, Kingdom of Saudi Arabia: IMAP 209-A, 1 map :col. ;74 x 104 cm.,
- Brankamp, R. A.; Ramirez, L. F., 1961, Geology of the northeastern Rub‘ Al Khali quadrangle, Kingdom of Saudi Arabia: IMAP 214-A, 1 map.,
- Broedel, C. H., 1961, Preliminary geologic map showing iron and copper prospects in the Juncos quadrangle, Puerto Rico: IMAP 326, 1 map :col. ;69 x 66 cm. on sheet 118 x 81 cm.,
- Buddington, A. F.; Baker, D. R., 1961, Geology of the Franklin and part of the Hamburg quadrangles, New Jersey: IMAP 346, 1 map.,
- Colton, R. B.; Lemke, R. W.; Lindvall, R. M., 1961, Glacial map of Montana east of the Rocky Mountains: IMAP 327, 1 map :col. ;74 x 137 cm. fold. to 22 x 25 cm.,
- Dane, C. H.; Bachman, G. O., 1961, Preliminary geologic map of the southwestern part of New Mexico: IMAP 344, 1 map :col. ;91 x 139 cm. folded to 19 x 28 cm. in envelope 30 x 24 cm.,
- Glover, Lynn, 1961, Preliminary report on the geology of the Coamo quadrangle, Puerto Rico: IMAP 335, 1 map :col. ;69 x 66 on sheet 98 x 138 cm.,
- Glover, Lynn, 1961, Preliminary geologic map of the Salinas quadrangle, Puerto Rico: IMAP 337, 1 map :col. ;69 x 66 cm.,
- Grantz, Arthur, 1961, Geologic map and cross sections of the Anchorage (D-2) quadrangle and northeasternmost part of the Anchorage (D-3) quadrangle, Alaska: IMAP 342, 1 map.,
- Grantz, Arthur, 1961, Geologic map of the north two-thirds of Anchorage (D-1) quadrangle, Alaska: IMAP 343, 1 map.,
- Grolier, M. J.; Foxworthy, B. L., 1961, Geology of the Moses Lake North quadrangle, Washington: IMAP 330, 1 map.,
- Hackman, R. J.; Mason, A. C., 1961, Engineer special study of the surface of the moon: IMAP 351, 3 maps and legend :col. ;on 4 sheets 99 x 135 cm.,
- Hansen, W. R., 1961, Geology of the Willow Creek Butte quadrangle, Utah-Colorado: IMAP 322, 1 map :col. ;58 x 44 cm. folded to 28 x 23 cm. in envelope 30 x 24 cm.,
- Hansen, W. R., 1961, Geologic map of the Dutch John Mountain and Goslin Mountain quadrangles, Utah-Wyoming: IMAP 324, 1 map.,
- Hoare, J. M.; Coonrad, W. L., 1961, Geologic map of the Hagemeister Island quadrangle, Alaska: IMAP 321, 1 map.,
- Hoare, J. M.; Coonrad, W. L., 1961, Geologic map of the Goodnews quadrangle, Alaska: IMAP 339, 1 map.,
- Lindvall, R. M., 1961, Geology of the Boxelder quadrangle, Montana: IMAP 338, 1 map.,
- Pewe, T. L.; Rivard, N. R., 1961, Geologic map and section of the Fairbanks D-3 quadrangle, Alaska: IMAP 340, 1 map.,
- prepared under the direction of Wells, F. G.; compiled by Peck, D. L., 1961, Geologic map of Oregon west of the 121st meridian: IMAP 325, 1 map : col. ;99 x 59 cm.,
- Ramirez, L. F.; Brown, G. F., 1961, Geology of the Wadi Ar Rimah quadrangle, Kingdom of Saudi Arabia: IMAP 206-B, 1 map.,
- Sanford, T. H., Jr.; Malmberg, G. T.; West, L. R., 1961, Geology of the Huntsville quadrangle, Alabama: IMAP 329, 1 map.,
- Scott, G. R., 1961, Preliminary geologic map of the Indian Hills quadrangle, Jefferson County, Colorado: IMAP 333, 1 map ;58 x 45 cm. folded to 26 x 20 cm. in envelope 30 x 24 cm.,
