Grand Teton National Park
Pets on a leash no longer than 6 feet are allowed inside Grand Teton National Park, but are not permitted on hiking trails, inside visitor centers or other facilities.
Pets are allowed on roads and road shoulders, campgrounds and picnic areas, parking lots, etc.
Pets are not permitted on any park trails or in the park backcountry.
Pets are allowed in the surrounding Bridger-Teton National Forest trails and backcountry unless otherwise posted.
For more information about Grand Teton National Park see here.
Before You Go Exploring in the USA
For a discussion on state law regarding cats, see here.
Most locations require pets to be on a leash less than 6 feet long.
Typically pets are not permitted in public buildings.
Cats are welcome:
in developed areas
on many trails and campgrounds
in some lodging facilities
Cats must be restrained, either on a leash (not exceeding 6 feet in length) or caged/crated.
Pets are not permitted:
in public buildings
designated swimming beaches
Cats are allowed in national forests, but must be kept on leash (less than 6 feet in length) while in developed recreation areas and interpretive trails.
Cats are not permitted in swimming areas.