2026 marks 31 years since wolves returned to Yellowstone National Park. The reintroduction began in 1995 and ran through 1997 during which time 41 wild wolves were imported from Canada and northwest Montana and released into Yellowstone National Park. Since their reintroduction the wolf numbers have fluctuated. At the end of 2025 the park counted 84 wolves in eight packs, down from 108 wolves in nine packs a year earlier.
Updated 21 September 2026 — Yellowstone’s wolf count has fallen
The park’s official end-of-2025 count was 84 wolves in eight packs, down from 108 in nine packs at the end of 2024. Wolves were reintroduced between 1995 and 1997, so the 2026 season marks 31 years. The 100-yard viewing rule and the safety guidance below are unchanged.
The wolves of Yellowstone National Park stay in communication by howling. These iconic vocalizations help pack members locate each other, coordinate movements, and maintain pack cohesion when separated. Wolf howls often prompt responses from other pack members even at great distances. In open flat terrain a wolf howl can be heard up to 10 miles away while in forested areas that radius decreases to around 6 miles.
The following video was taken during the spring season near Mammoth Hot Springs and shows a wolf trotting out between cars where it lets out some incredible howls while drivers patiently wait and observe.
The motorists did the right thing by coming to a complete stop and not exiting their vehicles in the presence of these majestic animals. Yellowstone offers truly world class opportunities to view wildlife but being in the vicinity of large wild mammals does not come without its dangers. In the case of wolves, visitors must maintain at least 100 yards distance at all times (the length of 10 school buses). Learn more about staying safe around wolves inside Yellowstone National Park below.
Yellowstone National Park Wolf Safety:
Wolves are not normally a danger to people, unless they become habituated to their presence and food (there has never been an attack in Yellowstone). Two habituated wolves have been killed in the park. Help us protect wolves in Yellowstone by:
- Remaining at least 100 yards away when watching or photographing them.
- Telling a ranger if you see wolves near developed areas or approaching people.
- Keeping your dog leashed at all times when it’s outside a vehicle.
If you’re concerned about a wolf because it’s too close or not showing any fear of people, stand tall and hold your ground. If the wolf approaches you, wave your arms, yell, and flare your jacket. If that doesn’t discourage it, throw something at it or use bear spray. Group up with other people, continue waving and yelling, and tell a ranger as soon as possible.
