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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: 9586

Red iron-ore beds of Silurian age in northeastern Alabama, northwestern Georgia, and eastern Tennessee Red iron-ore beds of Silurian age in northeastern Alabama, northwestern Georgia, and eastern Tennessee

Mining and smelting of iron ore in Alabama, northwestern Georgia, and eastern Tennessee date almost to Revolutionary War days, bus substantial production in the Southeast was not attained until after 1850. Numerous furnaces were erected int the region, especially in and near Birmingham, Ala., which is still the principal iron and steel-making center of the area. Locally mined iron ores...

Silver in the United States, exclusive of Alaska and Hawaii Silver in the United States, exclusive of Alaska and Hawaii

The productive silver districts in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. Only those districts known or believed to have contained 100,000 troy ounces or more silver are shown. Three size categories, based on production and estimated reserves, are distinguished and indicated by size of symbols: districts containing 100,000 to 5 million...
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