Mileposts (or mile markers) along highways and their locations collection during GPS mapping efforts in the early 2000s from the Colorado Department of Transportation (CDOT).

Aggregated from thousands of local jurisdictions by the Colorado Department of Local Affairs Demography office. Many of the district boundaries were created from scanned drawings or digitized PDFs, and therefore no guarantee of accuracy can be made for the data.

County boundaries and area, from the Colorado Department of Transportation (CDOT) for 64 counties in the state of Colorado.

Boundaries data from the State Demography Office for Colorado Municipalities provided by the Department of Local Affairs (DOLA).

Aggregated from thousands of local jurisdictions by the Colorado Department of Local Affairs (DOLA) Demography office. Many of the district boundaries were created from scanned drawings or digitized PDFs, and therefore no guarantee of accuracy can be made for the data.

Aggregated from thousands of local jurisdictions by the Colorado Department of Local Affairs (DOLA) Demography office. Many of the district boundaries were created from scanned drawings or digitized PDFs, and therefore no guarantee of accuracy can be made for the data.

Local Roads are functionally identified as local and excludes major roads or highways. Each road is segmented with a to and from description. The direction, length, type (paved/dirt), width (in feet), local route name and id, number of lanes, one/two-way bridges, average daily traffic counts, locations of count stations, if it is congested, if maintenance is under shared jurisdiction and the year it was built or last updated from the Colorado Department of Transportation (CDOT).

Division of Water Resources (DWR) Current Surface Water Conditions. This is a list of all remote monitored stream, diversion, and reservoir gages within the state of Colorado.

Aggregated from thousands of local jurisdictions by the Colorado Department of Local Affairs (DOLA) Demography office. Many of the district boundaries were created from scanned drawings or digitized PDFs, and therefore no guarantee of accuracy can be made for the data.