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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

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Volcanic Maps

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Filter Total Items: 9493

Map showing changes in shoreline of Martha's Vineyard, Massachusetts, during the past 200 years

The history of the coast of Martha's Vineyard is mostly a story of erosion, although locally the shore has alternately advanced and retreated.  Erosion of the island's shores has, in fact, been going on for thousands of years, and although we know little about the erosion of distant times, it is quite possible that the rate of erosion was about the same as now; about 16 acreas are lost to the sea

Map showing concentration of dissolved solids in water from the principal aquifer, Sugar House quadrangle, Salt Lake County, Utah

The concentration of dissolved solids in water from the principal aquifer ranges from about 100 mg/l (milligrams per liter) to as much as 800 mg/l. Water containing the least dissolved solids occurs in an arcuate, mile-wide band along the southern border of the Sugar House quadrangle. Water containing the most dissolved solids occurs in a 3½-mile–wide band in the northern part of the valley, as sh

Map showing configuration of the potentiometric surface of the principal aquifer and its approximate position relative to land surface, Sugar House quadrangle, Salt Lake County, Utah, February 1972

The potentiometric surface is an imaginary surface representing the static head of ground water and defined by the levels to which ground water would rise in tightly cased wells. The potentiometric surface of the principal aquifer within the area of the Sugar House quadrangle ranges from about 20 feet above, to as much as 500 feet below land surface as is shown on the map. The principal aquifer su

Map showing depth to top of the principal aquifer, Sugar House quadrangle, Salt Lake County, Utah, February 1972

The depth to the top of the principal aquifer in the Sugar House quadrangle ranges from about 50 feet to more than 400 feet below land surface. The principal aquifer supplied about 4 percent, or 9,000 acre-feet, of the municipal and industrial water used annually in Salt Lake County curing 1964-68. The least depths occur in topographically low areas of the Jordan Valley, such as near Murray in the