Datasets:
Sources and rights
All 12 source sheets are public USGS National Geologic Map Database publications.
| Sheet | USGS publication |
|---|---|
| AK Dillingham | Wilson, F.H. (2018), Surficial geologic map of the Dillingham quadrangle, southwestern Alaska, SIM-3388. NGMDB 107236 |
| AK Hughes | Hamilton, T.D. (2002), Surficial geologic map of the Hughes quadrangle, Alaska, MF-2408. NGMDB 53758 |
| AR St. Joe | Hudson, M.R., and Turner, K.J. (2009), Geologic map of the St. Joe quadrangle, Arkansas, SIM-3074. NGMDB 86691 |
| AZ Grand Canyon | Billingsley, G.H., and Hampton, H.M. (2000), Geologic map of the Grand Canyon 30′ × 60′ quadrangle, Arizona, I-2688. NGMDB 34288 |
| AZ Pipe Spring | Billingsley, G.H., Priest, S.S., and Felger, T.J. (2004), Geologic map of Pipe Spring National Monument and the western Kaibab-Paiute Indian Reservation, SIM-2863. NGMDB 70025 |
| CA/AZ Needles | Malmon, D.V., Howard, K.A., and Priest, S.S. (2009), Geologic map of the Needles 7.5′ quadrangle, California and Arizona, SIM-3062. NGMDB 86429 |
| CA Elsinore | Morton, D.M., and Weber, F.H. (2003), Preliminary geologic map of the Elsinore 7.5′ quadrangle, California, OF-2003-281. NGMDB 58858 |
| CA Marble Canyon | Stone, P., and others (2014), Geologic map and Upper Paleozoic stratigraphy of the Marble Canyon area, California, SIM-3298. NGMDB 100304 |
| DC Frederick | Davis, A.M., and others (2001), Geologic map database of the Washington, DC area, OF-2001-227. NGMDB 51791 |
| KY West Franklin | Moore, D.W., and others (2007), Surficial geologic map of the West Franklin quadrangle, Indiana and Kentucky, SIM-2967. NGMDB 81180 |
| NH Hartland | Walsh, G.J. (2016), Bedrock geologic map of the Hartland and North Hartland quadrangles, Vermont and New Hampshire, SIM-3361. NGMDB 104493 |
| OR Carlton | Wheeler, K.L., and others (2009), Geologic map of the Carlton quadrangle, Oregon, OF-2009-1172. NGMDB 87512 |
USGS-authored or produced works are generally public domain in the United States. Some USGS publications may include third-party copyrighted material; that material remains subject to its original rights. See USGS copyright guidance and USGS data access and copyright guidance.
The preview images in examples/ are stripped, reduced-size copies of the cited public sheets and derivative overlays. No original full-resolution raster is included.