Yellowstone Cutthroat Species Distribution

The historical range of the Yellowstone Cutthroat Trout was upstream of Shoshone Falls on the Snake River and tributaries. It also existed across the Continental Divide in Yellowstone Lake and in the Yellowstone River, and its tributaries downstream to the Tongue. Yellowstone Cutthroat can be distinguished from other cutthroat trout by their larger black spots, clustered toward the tail, and by their gray, gold, and copper hues. The Yellowstone Cutthroat measures from 6 to 20 inches long when it reaches maturity.