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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

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Map Releases

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Topo Maps

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Volcanic Maps

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Filter Total Items: 9586

Map of Flow Field Map of Flow Field

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data Delineation of the hydrogeologic framework of the Big Sioux aquifer near Sioux Falls, South Dakota, using airborne electromagnetic data

The U.S. Geological Survey, in cooperation with the City of Sioux Falls, South Dakota, began developing a groundwater-flow model of the Big Sioux aquifer in 2014 that will enable the City to make more informed water management decisions, such as delineation of areas of the greatest specific yield, which is crucial for locating municipal wells. Innovative tools are being evaluated as part...

Map of Flow Field Map of Flow Field

Recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of Flow Field Map of Flow Field

Recent changes to Kīlauea’s East Rift Zone lava flow field.

February 15, 2018—Why are HVO scientists talking so much about Mauna Loa? February 15, 2018—Why are HVO scientists talking so much about Mauna Loa?

Mauna Loa, Earth's largest active volcano, has erupted 33 times since 1843, producing the lava flows shown in black.

Map of Flow Field Map of Flow Field

Recent changes to Kīlauea’s East Rift Zone lava flow field
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