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GIS Data for Download 
DWR > Data & Maps > GIS and Maps > GIS Data for Download

Colorado Division of Water Resources provides Geographical Information System (GIS) data for download, which is available on our Colorado Decision Support Systems website.  This data is available in either shapefile or ArcGIS FGB format.  Go to Buy Maps, if you instead wish to purchase a printed map, or select an online mapping tool to view the data interactively.  CDWR uses the following projection for all of its data:  UTM, NAD 83, UTM Zone 13, Meters.