Sedthick/Colorado Front Range Infrastructure Resources Project (FRIRP)

This dataset was used in the creation of 1:50,000-scale hydrogeologic contour maps. It also was used as an input source (along with datasets of bedrock-outcrop polygons and point data) for the automated generation of a surface of unconsolidated-sediment thickness, also contoured for use in 1:50,000 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.