Satzone/Colorado Front Range Infrastructure Resources Project

This dataset was created by the U.S. Geological Survey (USGS) in the
development of the USGS Front Range Infrastructure Resources Project. This
dataset was used in the creation of 1:50,000-scale hydrogeologic contour maps.

The U.S. Geological Survey developed this dataset as part of the Colorado Front
Range Infrastructure Resources Project (FRIRP). One goal of the FRIRP was to
provide information on the availability of those hydrogeologic resources that
are either critical to maintaining infrastructure along the northern Front
Range or that may become less available because of urban expansion in the
northern Front Range. This dataset extends from the Boulder-Jefferson County
line on the south, to the middle of Larimer and Weld Counties on the North. On
the west, this dataset is bounded by the approximate mountain front of the
Front Range of the Rocky Mountains; on the east, by an arbitrary north-south
line extending through a point about 6.5 kilometers east of Greeley. This
digital geospatial dataset consists of saturated-thickness polygons that were
generated with a Geographic Information System (GIS).