Global GIS : Geology of the conterminous United States at 1:2,500,000 scale : Geology
This datalayer is a polygon coverage representing geologic regions of the conterminous United States. It is a digital version of the geology features of H.M. Beikman and P.B. King's Geologic Map of the United States, originally published at a scale of 1:2,500,000 (1974). This version of the datalayer was published as part of the USGS Global GIS : global coverage database (2003).
The USGS Global GIS database contains a wealth of USGS and other public domain data, including global coverages of elevation, landcover, seismicity, and resources of minerals and energy at a nominal scale of 1:1 million. The U.S. Geological Survey (USGS) and The American Geological Institute (AGI) announced a cooperative agreement that will focus on making the USGS Global Geographic Information System (GIS) database readily available to educators and the general public in the form of a DVD based world atlas.
This data is hosted by Harvard, and is currently unavailable to preview and download. Stanford University does not hold this data and cannot provide access to it, at this time. If you have questions about this or other unavailable datasets from Harvard Map Collection please submit your feedback to firstname.lastname@example.org.