Featured amenities
Pet Friendly
Sites & Rates
Average nightly rates81 total sites
RV Sites
59 sites
Tent Sites
22 sites
About Mammoth Campground (Yellowstone)
Number of accommodations: 81
Activities & Attractions
Nearby
Fishing
Year-round
Fishing
Seasonal information
2026 Season availability
Campground Amenities
Most popular amenities
Pet friendly
Pets and Policies
- Pet friendly
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Rates, Sites & Availability
81 Sites Available
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Site Details
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81 Sites Available
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Reviews (733)
What Guests Are Saying
Mammoth Campground offers clean facilities, friendly staff, and a beautiful location near Mammoth Hot Springs, making it an excellent base for exploring Yellowstone. Many reviews highlight the well-maintained bathrooms and accessible water spigots, as well as the stunning views and quiet atmosphere. However, some campers noted a lack of shade, noise from nearby traffic, and limited trail access, but overall, the campground is highly recommended for its amenities and scenic surroundings.
What Guests Are Saying
Mammoth Campground offers clean facilities, friendly staff, and a beautiful location near Mammoth Hot Springs, making it an excellent base for exploring Yellowstone. Many reviews highlight the well-maintained bathrooms and accessible water spigots, as well as the stunning views and quiet atmosphere. However, some campers noted a lack of shade, noise from nearby traffic, and limited trail access, but overall, the campground is highly recommended for its amenities and scenic surroundings.
Review Summary
Tim M
VerifiedMay 21, 2026 • Stayed at: Mammoth site #55, Loop: A
Very well kept campground with excellent camp hosts .
Charles J
VerifiedMay 21, 2026 • Stayed at: Mammoth site #33, Loop: B
The camp was well-managed. The bathrooms were clean. Water spigots were common often that we had no trouble filling our RV from our campsite. With almost no traffic on the old entrance road, it was an exceptionally quiet experience. I would definitely stay again!
David K
VerifiedMay 21, 2026 • Stayed at: Mammoth site #65, Loop: A
Nice
kirby b
VerifiedMay 20, 2026 • Stayed at: Mammoth site #34, Loop: B
Campsite 34 is the only site in campground you have to pull in (not a drive though) . Barely enough room for two vehicles and very close to next site. A wire fence separates next site. We heard the park service thought the original site to big and split it into two sites. Didn’t know this when we reserved the site.
Debra M
VerifiedMay 19, 2026 • Stayed at: Mammoth site #24, Loop: A
What was evident from our visit to YNP, was the obvious lack of personnel. We can only hope as a country we can vote new a new legislative body in that cares for our parks and wild lands. Keep up the good work and fight. We Resist!
John W
VerifiedMay 18, 2026 • Stayed at: Mammoth site #52, Loop: B
The scenic view of the mountains and valley from this campground are breathtaking! Elk and bison wandered through the campground during our stay. The bathrooms are old but adequate; they are also heated. You can pay for a shower at the Mammoth Hotel ($5, no timer). Ice and limited groceries are available at the Mammoth General Store. There's a medium-sized grocery store in the nearby town of Gardiner MT.
Scott P
VerifiedMay 18, 2026 • Stayed at: Mammoth site #70, Loop: Tent
Have used Mammoth before. Great location easy set up and departure. Fabulous views
Levi C
VerifiedMay 17, 2026 • Stayed at: Mammoth site #29, Loop: B
Very friendly staff. a little far from the main park but it was beautiful and secluded. a smaller campground which was nice.
Christina C
VerifiedMay 17, 2026 • Stayed at: Mammoth site #70, Loop: Tent
Quiet, trees, views, a perfect base for visiting the park.
Jayesh E
VerifiedMay 13, 2026 • Stayed at: Mammoth site #39, Loop: B
Had an amazing time, the ranger was very nice and informative about the rules and knowledgeable about the wildlife nearby.
Location Mammoth Campground (Yellowstone)
Address:
Yellowstone National Park
Yellowstone, WY, 82190
United States
Elevation: 1842 feet
Policies & Rules
General
- Mammoth Campground is managed by the park. If you are looking for campgrounds managed by Yellowstone National Park Lodges (Fishing Bridge RV Park, Bridge Bay, Canyon, Madison, and Grant Village campgrounds), please visit the Yellowstone National Park Lodges Camping website.
- RV or Camper Unit Delivery Prohibited. The delivery or pick-up of out-of-park RVs or other camper unit rentals is prohibited.
- Notify the Campground of Late Arrivals. To notify campground of late arrival or cancellation please call 307-344-2289
- Parking. All wheeled vehicles including trailers and motorcycles must be parked on parking pads or established roadways, so as not to block or restrict traffic in campgrounds.
- Camping Occupancy Limits. Maximum occupancy is six people per site. Camp only in designated sites. Camping is limited to 14 days from July 1 through Labor Day and to 30 days the rest of the year parkwide. The 44 day camping limit includes both concession- and park-operated campgrounds.
- Wildlife/Bear Regulations. ~Keep all food and related items - beverages, cooking utensils, stoves, pet food and, empty or full, food and beverage containers such as coolers, ice chests, and water jugs - locked inside your vehicle or stored in a food storage box, unless in immediate use. Bear resistant food containers must be kept in a vehicle, in a hard-sided camping unit, or in a food storage box. ~All trash and garbage must be disposed of in the provided bear-proof trash cans. Do not leave food related trash or garbage unattended. ~Washing dishes or clothing at campground hydrants or spigots is prohibited. Carry all dishwater/wastewater to the restroom toilet for disposal.
- Campfires and Firewood. Wood and charcoal fires are permitted. Campfires are permitted only in established fire grates. Fires must be attended at all times. Only dead, down, and detached wood may be gathered. Wood should not extend outside the fire grate perimeter. Do not break limbs off of standing trees, living or dead. Drown campfires thoroughly with water to make sure they are completely out. NOTE: Wood and charcoal fires may be subject to special restrictions due to fire danger. Restrictions will be listed on campground information boards and on the park's Current Conditions page. Propane grills and stoves are not usually affected by fire restrictions.
- Quiet hours are strictly enforced. No loud audio devices or other noise disturbances will be allowed during this time. Generators are prohibited between the hours of 8:00 p.m. and 8:00 a.m. Generators must be turned off durng the day when campsite is not occupied by site renter.
- Stay on Boardwalks and Trails. All travel in thermal areas is restricted to NPS designated trails and boardwalks.
- Fishing. To fish within the park, people 16 years of age and older are required to purchase and carry on their person a Yellowstone National Park Fishing Permit (you may purchase in advance). To learn more about fishing regulations, visit the park's Catch a Fish web page.
- 30 ft RV limit. From November through April.
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Last updated: September 8, 2026
