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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

Geologic and hydrostratigraphic map of the Anhalt, Fischer, and Spring Branch 7.5-minute quadrangles, Blanco, Comal, and Kendall Counties, Texas Geologic and hydrostratigraphic map of the Anhalt, Fischer, and Spring Branch 7.5-minute quadrangles, Blanco, Comal, and Kendall Counties, Texas

This report describes the geology and hydrostratigraphy of the Edwards and Trinity Groups in the Anhalt, Fischer, and Spring Branch 7.5-minute quadrangles, Blanco, Comal, and Kendall Counties, Texas. The hydrostratigraphy was defined based on variations in the amount and type of porosity of each lithostratigraphic unit, which varies depending on the unit’s original depositional...

Small-scale map of flow field Small-scale map of flow field

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to lower Puna.

Map showing flow field changes Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Geologic map of the Simcoe Mountains Volcanic Field, main central segment, Yakama Nation, Washington Geologic map of the Simcoe Mountains Volcanic Field, main central segment, Yakama Nation, Washington

Mountainous parts of the Yakama Nation lands in south-central Washington are mostly covered by basaltic lava flows and cinder cones that make up the Simcoe Mountains volcanic field. The accompanying geologic map of the central part of the volcanic field has been produced by the U.S. Geological Survey (USGS) on behalf of the Water Resources Program of the Yakama Nation. The volcanic...

Map with thermal mosaic overlay Map with thermal mosaic overlay

This map overlays a georeferenced thermal image mosaic onto the flow field change map to show the distribution of active and recently active breakouts.

Map showing flow field changes Map showing flow field changes

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.
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