2S3 Slough Creek – Yellowstone NP back country campsite — Yellowstone National Park

Yes. Yellowstone requires a backcountry permit year-round for all overnight stays in the backcountry, and each permit specifies a designated campsite and dates.

Yellowstone has a designated backcountry campsite system, so overnight stays must be in assigned backcountry campsites.

The prime backpacking season is late June through the end of September. May and June can have deep snow and swollen streams, and snow can return to higher elevations in September.

Yes. Overnight camping with stock is not permitted until July 1.