Leashed dogs are welcome in developed areas only: campgrounds, picnic areas, parking lots, and along paved roads. They aren't permitted on any trails or in the wilderness.
All trails and backcountry, public buildings, and park shuttle buses.
6 feet maximum, at all times.
Service animals are allowed where pets are not, under the ADA. A leash is still required.
The surrounding Custer Gallatin, Shoshone, and Bridger-Teton forests allow leashed dogs on most trails.