As the lake trout population has been reduced by nearly three decades of netting, Yellowstone Lake’s native cutthroat trout have slowly rebounded and gotten bigger — a lot bigger.

The resulting “cuttbows” are fertile, but hybridization is considered to be a threat to native cutthroat trout in some streams. Idaho state fisheries officials, for example, ...

As record high temperatures are recorded around the nation and world, Yellowstone National Park’s fisheries division is proposing to protect its native cutthroat trout by securing a high ...

Stocking of aggressive brown trout directly resulted in extirpation of native fish. Many larger trout systems that historically held rainbows, cutthroat, or brook trout were taken over by browns ...

Invasive species have been threatening Yellowstone’s native fish—Yellowstone and Westslope cutthroat trout and arctic grayling—since shortly after the park’s inception in 1872.

The Rio Grande cutthroat is one of three native trout indigenous to Colorado, per CPW. The other two are the Colorado River cutthroat (found on Colorado's Western Slope) and the Greenback ...

Without a reproducing population, CPW said, the brook trout will eventually die out, allowing for the native cutthroat to be restored. “This is a pretty historic moment for Colorado and native ...

To mitigate further decline and conserve Yellowstone cutthroat trout in the upper Shields River, the Custer Gallatin National Forest and FWP began removing non-native brook trout in 2022.

A reservoir in Colorado is undergoing a restoration project that’ll bring native Rio Grande cutthroat trout back, but all other fish will be killed. Colorado Parks and Wildlife (CPW) announced ...

The Utah Cutthroat Slam recently reached a milestone of raising over $100,000 in funding, which goes toward projects and other efforts to restore native cutthroat trout throughout Utah.