Credits and permissions:
The maps on this page were created by Jonathan R. Hendricks for the Earth@Home project. Unless otherwise indicated, maps were created using QGIS and USGS data from Fenneman and Johnson (1946) and Horton et al. (2017) using the maximum age values for each mapped unit. All maps below have Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. You are welcome to use them for any educational purpose.
This page was last updated on August 25, 2022.
Alabama
Geologic map of Alabama with physiographic regions identified.
Alaska
Geologic map of Alaska. Image by Jonathan R. Hendricks for the Earth@Home project developed using QGIS and USGS data (public domain) from Wilson et al. (2015).
Arizona
Geologic map of Arizona with physiographic regions identified.
Geologic and topographic map of Arizona. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Arkansas
Geologic map of Arkansas with physiographic regions identified.
California
Geologic map of California with physiographic regions identified.
Colorado
Geologic map of Colorado with physiographic regions identified.
Geologic and topographic map of Colorado. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Florida
Geologic map of Florida with physiographic regions identified.
Georgia
Geologic map of Georgia with physiographic regions identified.
Hawaii
Geologic map of Hawaii. Image by Jonathan R. Hendricks.
Idaho
Geologic map of Idaho with physiographic regions identified.
Geologic and topographic map of Idaho. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Illinois
Geologic map of Illinois with physiographic regions identified.
Geologic and topographic map of Illinois. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Indiana
Geologic map of Indiana with physiographic regions identified.
Geologic and topographic map of Indiana. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Iowa
Geologic map of Iowa with physiographic regions identified.
Geologic and topographic map of Iowa. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Kansas
Geologic map of Kansas with physiographic regions identified.
Kentucky
Geologic map of Kentucky with physiographic regions identified.
Louisiana
Geologic map of Louisiana with physiographic regions identified.
Minnesota
Geologic map of Minnesota with physiographic regions identified.
Geologic and topographic map of Minnesota. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Mississippi
Geologic map of Mississippi with physiographic regions identified.
Missouri
Geologic map of Missouri with physiographic regions identified.
Montana
Geologic map of Montana with physiographic regions identified.
Nebraska
Geologic map of Nebraska with physiographic regions identified.
Nevada
Geologic map of Nevada with physiographic regions identified.
New Mexico
Geologic map of New Mexico with physiographic regions identified.
Geologic and topographic map of New Mexico. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
North Carolina
Geologic map of North Carolina with physiographic regions identified.
North Dakota
Geologic map of North Dakota with physiographic regions identified.
Ohio
Geologic map of Ohio with physiographic regions identified.
Geologic and topographic map of Ohio. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Oklahoma
Geologic map of Oklahoma with physiographic regions identified.
Oregon
Geologic map of Oregon with physiographic regions identified.
South Carolina
Geologic map of South Carolina with physiographic regions identified.
South Dakota
Geologic map of South Dakota with physiographic regions identified.
Tennessee
Geologic map of Tennessee with physiographic regions identified.
Texas
Geologic map of Texas with physiographic regions identified.
Utah
Geologic map of Utah with physiographic regions identified.
Geologic and topographic map of Utah. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Virginia
Geologic map of Virginia with physiographic regions identified.
Washington
Geologic map of Washington with physiographic regions identified.
West Virginia
Geologic map of West Virginia with physiographic regions identified.
Wisconsin
Geologic map of Wisconsin with physiographic regions identified.
Geologic and topographic map of Wisconsin. Geologic data from Horton et al. (2017) using the maximum age values for each mapped unit. Topographic data are derived from the Shuttle Radar Topography Mission (SRTM GL3) Global 90m (SRTM_GL3) (Farr, T. G., and M. Kobrick, 2000, Shuttle Radar Topography Mission produces a wealth of data. Eos Trans. AGU, 81:583-583).
Wyoming
Geologic map of Wyoming with physiographic regions identified.