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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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Surficial geologic map of the Dillingham quadrangle, southwestern Alaska

The geologic map of the Dillingham quadrangle in southwestern Alaska shows surficial unconsolidated deposits, many of which are alluvial or glacial in nature. The map area, part of Alaska that was largely not glaciated during the late Wisconsin glaciation, has a long history reflecting local and more distant glaciations. Late Wisconsin glacial deposits have limited extent in the eastern part of th

May 13—Thermal map of fissure system

Map overlays a georegistered mosaic of thermal images collected during a helicopter overflight of Kīlauea's lower East Rift Zone fissures

Kīlauea Lower East Rift Zone Fissures, May 13 at 9:00 a.m. HST

Location of fissure 17. In addition to fissure 17, the map shows earlier fissures, lava flows, and steaming areas.

Kīlauea Lower East Rift Zone Fissures, May 12 at 12:00 p.m. HST

Location of fissure 16, as well as earlier fissures, lava flows, and steaming areas

May 09—Thermal map of the Leilani Estates fissures

Thermal map shows the fissure system during an overflight of the area

Kīlauea East Rift Zone Fissure Map as of 6:00 a.m. HST, May 6

Locations, mapped by USGS-HVO scientists, of eruptive fissures in the order that they occurred in the Leilani Estates Subdivision

Steepest descent paths and eruptive fissures, Kīlauea East Rift Zone, 6:00 am HST, May 6

Locations of eruptive fissures on Kīlauea Volcano's East Rift Zone in the order that they occurred in the Leilani Estates Subdivision

May 06—Thermal map of the Leilani Estates fissures

The thermal map was constructed by stitching many overlapping oblique thermal images collected by a handheld thermal camera during a helicopter overflight of the flow field.

Kīlauea East Rift Zone Map as of 10:00 a.m., May 5

Locations, mapped by USGS-HVO scientists, of eruptive fissures in the order that they occurred in the Leilani Estates Subdivision