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Maps

Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. They also organize, maintain, and publish the geospatial baseline of the Nation's topography, natural landscape, built environment and more.

Geologic Maps

Geologic Maps

Map Releases

Map Releases

Topo Maps

Topo Maps

Volcanic Maps

Volcanic Maps

All Maps

Filter Total Items: 9493

Map showing ranges in probable maximum well yield from water-bearing rocks in the San Francisco Bay region, California

This map presents generalized information regarding the probable maximum yields of wells in the rocks of the San Francisco Bay region.  It is intended to serve the needs of planners and other persons seeking general information on potential yields from water wells.  Four ranges in probable yield, based on adequacy of the range in yield for major beneficial uses of water, are given.  The ranges are

Map showing relative ease of excavation in the Salina quadrangle, Utah

This map shows the relative ease (or difficulty) with which rocks and surficial deposits can be excavated. Because of rapidly changing technology of excavation and considerable local variability of many rock units, it is not practical to specifically categorize rock units according to type of equipment needed for their excavations. However, it may be stated in general that rock units classed as ve