Fly fishing in Colorado.

82 Colorado rivers, creeks, lakes and flats with a page: each with its official agency designations and their source, live USGS flow where a gauge exists, the state’s regulations and access map, and the guides and shops nearby. Waters that cross into Colorado from a neighbouring state are included.

A Colorado water is here because the state agency lists it under an official designation, because guides and shops in our directories name it on their own websites, or because a live USGS gauge sits on a river a guide names. Species appear only where an agency page states them. “Most fished first” ranks by designations and by how many guide and shop websites name the water.