This digital geospatial data set consists of structure contours on the base of
the upper member of the Arapahoe aquifer. The U.S. Geological Survey developed
this data set as part of a project described ...
This data set was created to display the altitude of the base of the
Laramie-Fox Hills aquifer and the Arapahoe aquifer as depicted in the plates in
Robson and others, (1988).
This digital geospatial ...