- Dixon, H. Roberta, 1990, Geologic map of the Seminoe Dam NE quadrangle, Carbon County, Wyoming: Geologic Quadrangle 1673, 1 map :col. ;58 x 43 cm., on sheet 84 x 109 cm., folded in envelope 30 x 24 cm.,
- Epstein, Jack Burton, 1990, Geologic map of the Saylorsburg quadrangle, Monroe and Northampton Counties, Pennsylvania: Geologic Quadrangle 1638, 1 map :col. ;58 x 44 cm., on sheet 101 x 142 cm., folded in envelope 30 x 24 cm.,
- Epstein, Jack Burton, 1990, Geologic map of the Wind Gap quadrangle, Northampton and Monroe Counties, Pennsylvania: Geologic Quadrangle 1645, 1 map :col. ;58 x 44 cm., on sheet 103 x 107 cm., folded in envelope 30 x 24 cm.,
- Hladky, Frank R.; Kellogg, Karl S., 1990, Geologic map of the Yandell Springs 7 1/2-minute quadrangle, Bannock and Bingham Counties, Idaho: Geologic Quadrangle 1678, 1 map :col. ;58 x 43 cm., on sheet 85 x 75 cm., folded in envelope 30 x 24 cm.,
- Kellogg, Karl S., 1990, Geologic map of the South Putnam Mountain quadrangle, Bannock and Caribou Counties, Idaho: Geologic Quadrangle 1665, 1 map :col. ;58 x 42 cm., on sheet 84 x 94 cm., folded in envelope 30 x 24 cm.,
- Koteff, Carl; Stone, Byron D., 1990, Surficial geologic map of the Townsend quadrangle, Middlesex and Worcester Counties, Massachusetts and Hillsborough County, New Hampshire: Geologic Quadrangle 1677, 1 map :col. ;58 x 43 cm., on sheet 84 x 129 cm., folded in envelope 30 x 24 cm.,
- Kuntz, Mel A.; Champion, Duane E.; Lefebvre, Richard H., 1990, Geologic map of the Fissure Butte quadrangle, Blaine and Butte Counties, Idaho: Geologic Quadrangle 1635, 1 map :col. ;58 x 42 cm., on sheet 70 x 112 cm., folded in envelope 30 x 24 cm.,
- Maxwell, Charles Henry, 1990, Geologic map of the Cubero quadrangle, Cibola County, New Mexico: Geologic Quadrangle 1657, 1 map :col. ;58 x 47 cm., on sheet 79 x 91 cm., folded in envelope 30 x 24 cm.,
- Maxwell, Charles Henry, 1990, Geologic map of the Broom Mountain quadrangle, Cibola County, New Mexico: Geologic Quadrangle 1666, 1 map :col. ;58 x 48 cm., on sheet 79 x 84 cm., folded in envelope 30 x 24 cm.,
- Maxwell, Charles Henry; Oakman, Mariel R., 1990, Geologic map of the Cuchillo quadrangle, Sierra County, New Mexico: Geologic Quadrangle 1686, 1 map :col. ;58 x 48 cm., on sheet 76 x 107 cm., folded in envelope 30 x 24 cm.,
- Moore, Samuel L., 1990, Geologic map of the Blue Mesa quadrangle, Cibola County, New Mexico: Geologic Quadrangle 1652, 1 map :col. ;58 x 48 cm., on sheet 79 x 81 cm., folded in envelope 30 x 24 cm.,
- Moore, Samuel L., 1990, Geologic map of the Mecate Meadow quadrangle, Cibola County, New Mexico: Geologic Quadrangle 1664, 1 map :col. ;58 x 48 cm., on sheet 79 x 71 cm., folded in envelope 30 x 24 cm.,
- Ratcliffe, Nicholas M.; Burton, William C., 1990, Bedrock geologic map of the Poughquag quadrangle, New York: Geologic Quadrangle 1662, 1 map :col. ;58 x 44 cm., on sheet 104 x 145 cm., folded in envelope 30 x 24 cm.,
- Rice, Charles L.; Newell, Wayne L., 1990, Geologic map of part of the Jellico East quadrangle, Campbell and Claiborne Counties, Tennessee: Geologic Quadrangle 1674, 1 map :col. ;58 x 47 cm., on sheet 81 x 109 cm., folded in envelope 30 x 24 cm.,
- Robertson, J. F., 1990, Geologic map of the Thoreau quadrangle, McKinley County, New Mexico: Geologic Quadrangle 1675, 1 map :col. ;58 x 47 cm., on sheet 81 x 107 cm., folded in envelope 30 x 24 cm.,
- Robertson, J. F., 1990, Geologic map of the Hosta Butte quadrangle, McKinley County, New Mexico: Geologic Quadrangle 1683, 1 map :col. ;58 x 47 cm., on sheet 85 x 112 cm., folded in envelope 30 x 24 cm.,
- Sherrod, David R.; Koch, Richard D.; Grubensky, Michael J., 1990, Geologic map of the Vicksburg quadrangle, La Paz County, Arizona: Geologic Quadrangle 1684, 1 map :col. ;44 x 37 cm., on sheet 69 x 81 cm., folded in envelope 30 x 24 cm.,
- Siders, Mary A.; Rowley, P. D.; Shubat, M. A.; Christenson, G. E.; Galyardt, G. L., 1990, Geologic map of the Newcastle quadrangle, Iron County, Utah: Geologic Quadrangle 1690, 1 map :col. ;58 x 46 cm., on sheet 81 x 104 cm., folded in envelope 30 x 24 cm.,
- Thaden, Robert E., 1990, Geologic map of the Todilto Park quadrangle, McKinley County, New Mexico: Geologic Quadrangle 1646, 1 map :col. ;57 x 47 cm., on sheet 81 x 112 cm., folded in envelope 30 x 24 cm.,
- Thaden, Robert E., 1990, Geologic map of the Window Rock quadrangle, Apache County, Arizona, and McKinley County, New Mexico: Geologic Quadrangle 1647, 1 map :col. ;58 x 47 cm., on sheet 79 x 109 cm., folded in envelope 30 x 24 cm.,
- Thaden, Robert E., 1990, Geologic map of the Buell Park quadrangle, Apache County, Arizona, and McKinley County, New Mexico: Geologic Quadrangle 1649, 1 map :col. ;58 x 47 cm., on sheet 81 x 107 cm., folded in envelope 30 x 24 cm.,
- Trent, Virgil A.; Spencer, Frank Darwyn, 1990, Geologic map of the Anawalt quadrangle, West Virginia-Virginia: Geologic Quadrangle 1668, 1 map :col. ;58 x 46 cm., on sheet 81 x 109 cm., folded in envelope 30 x 24 cm.,
- Wallace, Alan R., 1990, Geologic map of the Jake Creek Mountain quadrangle, Elko County, Nevada: Geologic Quadrangle 1672, 1 map :col. ;58 x 44 cm., on sheet 92 x 70 cm., folded in envelope 30 x 24 cm.,
