- Becraft, G. E.; Pinckney, D. M., 1961, Northwest quarter of the Boulder quadrangle, Montana: Miscellaneous Field Studies Map 183, 1 map ;58 x 40 cm. folded in envelopes 30 x 24 cm.,
- Bromfield, C. S.; Wrucke, C. T., 1961, Reconnaissance geologic map of the Cedar Mountains, Grant and Luna Counties, New Mexico: Miscellaneous Field Studies Map 159, 1 map.,
- Bush, A. L., 1961, Gray Head quadrangle, San Miguel County, Colorado: Miscellaneous Field Studies Map 176, 1 map :col. ;57 x 46 cm. on sheet 77 x 78 cm. folded to 20 x 27 cm. in envelope 30 x 24 cm.,
- Callaghan, Eugene; Parker, R. L., 1961, Geologic map of part of the Beaver quadrangle, Utah: Miscellaneous Field Studies Map 202, 1 map ;32 x 19 cm., on sheet 50 x 73 cm. folded in envelope 30 x 24 cm.,
- Cornwall, H. R.; Kleinhampl, F. J., 1961, Preliminary geologic map and sections of the Bullfrog quadrangle, Nevada-California: Miscellaneous Field Studies Map 177, 1 map.,
- Creasey, S. C.; Jackson, E. D.; Gulbrandsen, R. A., 1961, Reconnaissance geologic map of parts of the San Pedro and Aravaipa Valleys, south-central Arizona: Miscellaneous Field Studies Map 238, 1 map ;85 x 75 cm. folded to 30 x 24 cm.,
- Dibblee, T. W., Jr., 1961, Geologic map of the Bouquet Reservoir quadrangle, Los Angeles County, California: Miscellaneous Field Studies Map 79, 1 map ;45 x 37 cm., on sheet 80 x 81 cm. folded in envelope 30 x 24 cm.,
- Lehner, R. E., Tagg, K. M.; Bell, M. M.; Roberts, R. J., 1961, Preliminary geologic map of Eureka County, Nevada: Miscellaneous Field Studies Map 178, 1 map ;102 x 35 cm., on sheet 115 x 97 cm. folded in envelope 30 x 24 cm.,
- Moore, J. G., 1961, Preliminary geologic map of Lyon, Douglas, Ormsby, and part of Washoe Counties, Nevada: Miscellaneous Field Studies Map 80, 1 map :col. ;86 x 65 cm. folded in envelope 30 x 24 cm.,
- Petersen, R. G., 1961, Paria Plateau SE quadrangle, Coconino County, Arizona: Miscellaneous Field Studies Map 196, 1 map.,
- Peterson, N. P., 1961, Preliminary geologic map of the Pinal Ranch quadrangle, Arizona: Miscellaneous Field Studies Map 81, 1 map ;58 x 49 cm. folded in envelope 30 x 24 cm.,
- Pinckney, D. M.; Becraft, G. E., 1961, Southwest quarter of the Boulder quadrangle, Montana: Miscellaneous Field Studies Map 187, 1 map.,
- Ruppel, E. T., 1961, Reconnaissance geologic map of the Deer Lodge quadrangle, Powell, Deer Lodge, and Jefferson Counties, Montana: Miscellaneous Field Studies Map 174, 1 map ;58 x 40 cm., folded to 25 x 22 cm., in envelope 30 x 24 cm.,
- Shawe, D. R.; Simmons, G. C.; Rogers, W. B., 1961, Preliminary geologic map of the Slick Rock district, San Miguel and Dolores Counties, Colorado: Miscellaneous Field Studies Map 203, 1 map ;127 x 98 cm.,
- Tooker, E. W.; Roberts, R. J., 1961, Preliminary geologic map and sections of the north end of the Oquirrh Range (Mills Junction, Garfield and Magna 7 1/2-minute quadrangles), Tooele and Salt Lake Counties, Utah: Miscellaneous Field Studies Map 240, 1 map ;58 x 96 cm. folded in envelope 30 x 24 cm.,
- Tschanz, C. M.; Pampeyan, E. H., 1961, Preliminary geologic map of Lincoln County, Nevada: Miscellaneous Field Studies Map 206, 1 map :col. ;106 x 86 cm. folded in envelope 30 x 24 cm.,
- Weir, G. W.; Kennedy, V. C.; Puffett, W. P.; Dodson, C. L., 1961, and section of the Mount Peale 2 NW quadrangle, San Juan County, Utah: Miscellaneous Field Studies Map 152, 1 map.,
- Weir, G. W.; Puffett, W. P.; Dodson, C. L., 1961, and section of the Mount Peale 4 NW quadrangle, San Juan County, Utah: Miscellaneous Field Studies Map 151, 1 map.,
- Willden, Ronald, 1961, Preliminary geologic map of Humboldt County, Nevada: Miscellaneous Field Studies Map 236, 1 map ;81 x 97 cm. folded in envelope 30 x 24 cm.,
- Wrucke, C. T.; Bromfield, C. S., 1961, Reconnaissance geologic map of part of the southern Peloncillo Mountains, Hidalgo County, New Mexico: Miscellaneous Field Studies Map 160, 1 map.,
