GIS Data
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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.