CPW Fish Shapefile Download

Updated December, 2025 HUC 12 PRESENCE: Depicts the Hydrologic Unit Code 12 boundaries where a population of fish are known to occur in Colorado based on occurrences between January 2008 and December 2017 aggregated at the HUC12 level. This information was derived from Colorado Parks and Wildlife field personnel. A variety of data capture techniques were used. Various sources were referenced in developing these data. This generalized graphic representation of species range data is provided for informational purposes only and has not been prepared for, nor is it suitable for, any type of legal, regulatory, or site specific planning purposes. These data are subject to errors and change. Users of the information displayed in this map service are strongly cautioned to verify all information and contact local CPW Biologists before making any decisions. These data are updated as needed after review by CPW personnel and not on any regularly scheduled cycle. Files in this download include data for: ARKANSAS DARTER BLUEHEAD SUCKER BONYTAIL BRASSY MINNOW COLORADO PIKEMINNOW COMMON SHINER CUTTHROAT TROUT FLANNELMOUTH SUCKER FLATHEAD CHUB HUMPBACK CHUB IOWA DARTER LAKE CHUB MOUNTAIN SUCKER NORTHERN REDBELLY DACE ORANGE-SPOTTED SUNFISH ORANGETHROAT DARTER PLAINS MINNOW PLAINS TOPMINNOW RAZORBACK SUCKER RIO GRANDE CHUB RIO GRANDE SUCKER ROUNDTAIL CHUB SOUTHERN REDBELLY DACE STONECAT SUCKERMOUTH MINNOW