RIVER OF THE MONTH
Yampa River
The Yampa is the last great free-flowing river on the Colorado Plateau, its course interrupted only by a pair of small dams in the upper basin. Near the end of its 250-mile journey to the Green River, it carves one of the most spectacular river canyons in the world at Dinosaur National Monument. With its wild character, verdant riparian corridors and spectacular red-rock canyons, the Yampa is hands-down one of the truly great rivers of the West.
Why It Matters
USFWS
DAVID DIETRICH
The least dammed of the major Colorado tributaries, the Yampa River is critical for endangered warm-water fish, and its waters nourish one of the finest cottonwood forests in the West. The Yampa is forever enshrined as the launch point of the river conservation movement in the 1950s, when citizens blocked construction of Echo Park Dam, which would have flooded the Yampa and Green River Canyons.
Fish
ROB HANNA
The Yampa is key to the survival of four native species of warmwater fish: Colorado pikeminnow, humpback chub, bonytail chub, and razorback sucker (pictured), which have suffered elsewhere from nonnative fish competition and habitat degradation. The upper Yampa, the Elk and Little Snake River tributaries have superb habitat for imperiled Colorado cutthroat trout.
Wildlife
Cottonwood and box elder forests that line the Yampa River provide a rare haven for a diverse array of birds and mammals, including colorful songbirds, osprey, beaver and otter. The basin is also home to large mammals like bighorn sheep, pronghorn, black bear and cougar. Near Cross Mountain Canyon, the basin has one of the largest herds of Rocky Mountain elk (pictured) in the Lower 48.