Spanning the Continental Divide, from the Great Plains to the East Slope, and a big chunk of the West Slope, Colorado is a destination for trout anglers world-wide.  It possesses an enormous wealth of trout habitat, and is home to many native species.

Source:  Google Earth image with data provided by CO Department of Public Health and the Environment via US EPA WATERS database, TU CSI, and US Fish and Wildlife Service

We have just begun coverage of the western US.  Already, Colorado is receiving substantial coverage.

In the image above, turquoise lines mark stream segments designated as "Cold Water Aquatic Life Habitat" by the CO Department of Public Health and Environment.  It, roughly speaking, defines the areas where it is possible to locate wild trout.  The other overlays and streams marked in the image show a subset of the total information available on this site.  These provide guidance principally on native species.  Keep in mind that cold water habitat which doesn't hold natives is likely to hold "exotics" like brook, rainbow, and brown trout.  Native species in CO for which we provide data include:

• Colorado River cutthroat
• Rio Grande cutthroat
• Greenback cutthroat

All of these datasets are currently available for download.  Check out the "Natives" page of the downloads tab, and the Colorado category in the "Streams" section of the "download" page.

We'll be adding more content to Colorado as we find the time. 

If you'd like more information about Colorado, please register and post a comment.  The areas which get the most interest from our users tend to receive the highest priority when we decide what to do next.  Registering will also put you on our email list, and updates on what's new 4-6 times a year. We share our list with no one else.