Cutthroat trout
NativeColorado's only native trout, named for the orange-red slash under the jaw. Several subspecies once filled the state's waters — the greenback cutthroat (the official state fish), the Colorado River cutthroat, and the Rio Grande cutthroat. Conservation work has pulled the greenback back from the brink. A cutthroat in a high cold creek is the closest thing Colorado has to a fish from before settlement.
Brown trout
Introduced (European)A wild, wary, beautifully spotted fish brought from Europe in the 1800s. Browns are the dominant wild trout in much of Colorado's moving water, including the three private miles of East Beaver Creek at Elk Glade. They hold in the cut banks and the deeper runs, spook easily, and reward a careful drift — the thinking angler's trout.
Brook trout
Introduced (char)Not technically a trout but a char, the brookie was brought from the eastern US and thrives in cold, high, headwater creeks — exactly the water East Beaver Creek provides. Vivid: dark green vermiculated backs, red spots haloed in blue, white-edged fins. Eager and abundant in the upper beaver complex, they're often a young angler's first fish on a fly.
Rainbow trout
Introduced (western US)Native to the Pacific drainages, rainbows were stocked across Colorado and now run wild in many rivers. Hard-fighting and acrobatic, marked by the pink-to-red lateral stripe. They're the backbone of much of Colorado's tailwater and stocked fishing, though high wild creeks like East Beaver lean more to browns and brookies.