Preliminary integrated databases for the United States - Western States: California, Nevada, Arizona, and Washington
Barry C. Moring
Robert J. Miller
Kathryn S. Flynn
Melanie J. Hopkins
Gordon A. Haxel
U.S. Geological Survey
These digital maps are a reformulation of previously published maps, primarily maps of states. The reformulation gives all the maps the same structure and format, allowing them to be combined into regional maps. The associated data tables have information about age and lithology of the map units, also in a standard format.
No warranty, expressed or implied, is made regarding the accuracy or utility of this data for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of this data. Original source of this data was the Arizona Geological Survey.