• A bull elk bugles in Yellowstone National Park

    Yellowstone

    National Park ID,MT,WY

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  • Craig Pass Closed for the Season; Mammoth to Norris, Expect 30-minute Delays

    The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. More »

Yellowstone Fish Reports

A collage of photos: person holding a giant trout and a person standing next to a boat by a body of water.
Graduate researcher holding giant cutthroat trout at Clear Creek, Yellowstone National Park (left) and Yellowstone National Park fisheries biologist (right) with an electrofishing raft on the Yellowstone River upstream of Yellowstone Lake.
NPS photo by(left)Ertel and (right)Koel
 
 

Peer-reviewed Literature

Other Technical Reports

Yellowstone Science Articles

National Environmental Protection Act Documents

Additional Technical Information

Additional information regarding Yellowstone's fish and other aquatic resources is available at the Greater Yellowstone Science Learning Center. Visit the GYSLC at www.greateryellowstonescience.org

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Did You Know?

Yellowstone Wolf.

There were no wolves in Yellowstone in 1994. The wolves that were reintroduced in 1995 and 1996 thrived and there are now over 300 of their descendents living in the Greater Yellowstone Area.