-
Federal
Digital database of the previously published geologic map of the greater Denver area, Front Range Urban Corridor, Colorado
Department of the Interior —
This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and... -
Federal
Denver Coal Basin boundary from 1999 National Coal Resource Assessment
Department of the Interior —
This ArcView shapefile contains a polygon representing the extent of the Denver coal basin boundary. This theme was created specifically for the National Coal...