Geologic Map of the United States

by Philip B. King and Helen M. Beikman (US Geological Survey)

HTML implementation by WIlliam Menke

Click on map for enlarged view. Key. Scale.
Clicking on edges of enlargement scrolls to another; clicking on center returns to this page.

Selected regions: Basin and Range ... Black Hills ... California ... Cascades ... New York & Southern New England ... New York City ... Northern Appalachians ... Northern California ... Rocky Mountains ... Southern Appalachians ... Southern California ... Superior Provence ... Yellowstone

EPS version of map (20 Mby) and key (3 Mby).