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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 high-purity quartzite in California, Nevada, Utah, Idaho, and Montana

Unusually pure quartzite of Ordovician age crops out in hundreds of places from Owens River, California to southwestern Montana.  It constitutes a single lithologic type that is called the Kinnikinic Quartzite in central Idaho, the Swan Peak Quartzite in southeastern Idaho and adjacent parts of Utah, and the Eureka Quartizite in western Utah, Nevada, and southern California.

Map showing outstanding natural and historic landmarks in the greater Denver area, Front Range Urban Corridor, Colorado

The preservation and protection of landmarks of outstanding natural and historical significance has become a matter of increasing public concern as man's ability to alter the landscape has increased.  Congress expressed its concern in 1969 in its passage of the National Environmental Policy Act.  The purpose of this report is to identify and inventory such landmarks.  Appropriate consideration in