Mammoth Campground
Open year-round. Reservations required via Recreation.gov from mid-April through mid-October. First-come, first-served from mid-October through early April with payment via Scan and Pay in the Recreation.gov app. Camping limited to 14 consecutive days from July 1 through Labor Day, and 30 days the rest of the year.
About
Mammoth Campground is uniquely positioned as Yellowstone's only campground open year-round, making it a valuable option for winter visitors and shoulder-season travelers. Located in a high sagebrush steppe at 6,200 feet elevation, the campground provides easy access to the Mammoth Hot Springs terraces, historic Fort Yellowstone, and excellent wildlife viewing throughout the seasons. The 82 standard nonelectric sites accommodate tents and RVs, with some sites fitting combined vehicle lengths up to 75 feet during peak season, though winter limits drop to 30 feet total. Pull-through and back-in sites are available, with limited width for slide-outs and potentially unlevel surfaces. Five ADA-accessible campsites serve visitors with mobility needs. Amenities include flush toilets (year-round, though limited in winter), potable water spigots, dump station, trash and recycling collection, food storage lockers, and seasonal firewood sales. No showers are available on-site, though accessible shower facilities can be found in nearby Gardiner, Montana. Wood and charcoal fires are permitted in fire grates unless fire restrictions are in effect.
Directions
Located in the Mammoth Hot Springs area in the northern section of Yellowstone National Park, five miles south of the North Entrance near Gardiner, Montana.
Amenities
| Water | Yes |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | Yes |
| Wifi | No |
| Pets Allowed | Yes |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $25 |
Vehicle
| Max RV Length | 75ft |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| YELL_visitor_services@nps.gov | |
| Phone | +1 (307) 344-2289 |
Cell Service
| AT&T | None |
| Verizon | None |
| T-Mobile | None |
Availability
Photos
Community Posts
No posts yet. Be the first to share your experience!