Three rivers in Yellowstone National Park are temporarily closing early in the day due to warm water temperatures and low flow.

Yellowstone National Park biologists appear to be winning the war against lake trout as they attempt to make Yellowstone Lake safe again for Yellowstone cutthroat trout. After two years of gill ...

Yellowstone National Park officials say they’re making a significant dent in the lake trout population in Yellowstone Lake, clearing space for the park’s native cutthroat trout. Yellowstone ...

IDAHO FALLS – Mother Nature generally has the last say on when it’s time to pack up and leave in Yellowstone National Park ... overseeing the park’s lake trout suppression project, said ...

Invasive lake trout arrived in Yellowstone National Park 25 years ago, quickly creating mayhem as they devoured native cutthroat trout and drove the system to the brink of ecological collapse.

Languages; English. An invasion of trout at Yellowstone lake impacted wildlife populations throughout the ecosystem of the National Park, scientists have found. The lake trout, which were first ...

Starting Thursday, June 19, fishing on select rivers in Yellowstone National Park will be restricted from 2 p.m. to sunrise due to high water temperatures and ...

Judging by the high watermarks on bridge pilings, Todd Koel, lead fisheries biologist for Yellowstone National ... hamstringing the park’s fight to save native cutthroat trout populations.