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Federal
Extent of Pliocene hyaloclastic deposits and related lava flows in the Columbia Gorge, Oregon and Washington
Department of the Interior —
This dataset contains polygons representing deposits of hyaloclastic debris that were generated between about 3.5 and 3.0 million years ago when a series of basaltic... -
Federal
Hydrogeologic framework top-surface altitude rasters for the Virginia Eastern Shore
Department of the Interior —
In support of a groundwater-flow model of the Virginia Eastern Shore, altitudes were determined for the tops of hydrogeologic surfaces, including incised paleochannel...