Wyoming's National Rivers
Clarks Fork of the Yellowstone River
Snake River Headwaters
National Rivers in Wyoming
There are about 108,767 miles of rivers and streams in Wyoming. About 408 miles of them is designated as Wild & Scenic. That's less than 4/10 of 1% of Wyoming's river miles. Both rivers listed below are in the Greater Yellowstone Ecological Community in the northwestern corner of the state.