Programs

Field Guides & Tools

The following is a partial list of relevant tools for delineating and classifying wetlands. CDOT does not endorse any private companies.

Wetland Data Procedures - CDOT instructions for using GPS to collect wetland boundaries.

Regional Supplements to the Corps of Engineers Wetland Delineation Manual:Florence

National Wetland Plant List (2018 update)
The U.S. Army Corps of Engineers (Corps), as part of an interagency effort with the U.S. Environmental Protection Agency (EPA), the U.S. Fish and Wildlife Service (FWS) and the U.S. Department of Agriculture Natural Resources Conservation Service (NRCS), developed the National Wetland Plant List (NWPL) (updated in 2018). The NWPL is used to determine whether the hydrophytic vegetation parameter is met when conducting wetland determinations under the Clean Water Act and the Wetland Conservation Provisions of the Food Security Act. The list must be used in any wetland delineation performed. The plant lists for the state and for the three regions within Colorado can be found below. These are dynamic documents that are updated often. 

Other Helpful Tools:

Colorado: The Official State Web Portal