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Geohydrologic unit boundaries along the Colorado Front Range
This digital geospatial data set consists of geohydrologic unit boundaries shown in the report "Structure, outcrop, and subcrop of the bedrock aquifers along the western margin... -
Shapefiles of hydrogeologic unit extents and top-surface altitude contours us...
A revision to the hydrogeologic framework of the Virginia coastal plain southwest of the James River was developed by USGS during 2019-2021. This revision includes modifications...
E' possibile inoltre accedere al registro usando le API (vedi Documentazione API).