Grizzly bears (Ursus arctos horribilis) are found in North America, primarily in the western United States and Canada. They inhabit forests, mountains, subalpine meadows, and coastal regions.
United States
- Greater Yellowstone Ecosystem: Parts of Wyoming, Montana, and Idaho; home to one of the largest lower-48 populations.
- Northern Continental Divide Ecosystem: Parts of Montana and Idaho, with rugged mountains and dense forests.
- Selkirk Mountains: Idaho and Washington state.
- Cabinet-Yaak Ecosystem: Parts of Montana and Idaho, featuring mountainous terrain and dense forests.
Canada
- British Columbia: The largest Canadian population, including the Great Bear Rainforest, Kootenay Mountains, and Cariboo Mountains.
- Alberta: Western Alberta, especially the Rocky Mountains and foothills.
- Yukon Territory: Diverse habitats from forests to alpine tundra.
- Northwest Territories: Parts of the Mackenzie Mountains and Dehcho Region.
Grizzly bear density is not uniform within these regions; habitat quality, food availability, and human activity influence where they concentrate. Conservation efforts across North America aim to protect grizzly bears and their habitats.