Featured amenities
Pet Friendly
About Mammoth Campground (Yellowstone)
Number of accommodations: 81
Nearby Activities & Attractions
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 (560)
What Guests Are Saying
Mammoth Campground is praised for its beautiful scenery, convenient location near Lamar Valley, and friendly hosts who maintain a clean environment. Many campers enjoyed the spacious and accessible sites, as well as the wildlife sightings, particularly elk and bison. However, some visitors noted that only one bathroom was open during their stay, leading to inconvenience, and there were occasional issues with campsite reservations. Overall, it's considered a great spot for exploring Yellowstone, especially in the off-season.
What Guests Are Saying
Mammoth Campground is praised for its beautiful scenery, convenient location near Lamar Valley, and friendly hosts who maintain a clean environment. Many campers enjoyed the spacious and accessible sites, as well as the wildlife sightings, particularly elk and bison. However, some visitors noted that only one bathroom was open during their stay, leading to inconvenience, and there were occasional issues with campsite reservations. Overall, it's considered a great spot for exploring Yellowstone, especially in the off-season.
Review Summary
Kelly A
VerifiedJuly 28, 2025 • Stayed at: Mammoth site #45, Loop: B
Peaceful and perfect. We heard and saw elk. The ranger talk was a bonus.
Kacie M
VerifiedJuly 27, 2025 • Stayed at: Mammoth site #79, Loop: Tent
The campgrounds was very hot with little shade. The location was good for the north half of the park.
Lori W
VerifiedJuly 26, 2025 • Stayed at: Mammoth site #82, Loop: tent
Very nice facilities and amazing views! My only complaint was that the camping pad was up on a fairly steep grade and one of the people in our party has bad knees. So it was difficult for her to get up and down from the tent pad. Otherwise it was a great day.
Jeanie M
VerifiedJuly 25, 2025 • Stayed at: Mammoth site #76, Loop: Tent
Got to the campground around 7pm and was greeted by the host (?). Received a map of the campground and instructions on water, bathrooms, trash, and quiet hours. Also showers at the hotel! We found our spot, which had a picnic table, fire ring, and bear box. The tent platform is awesome, and made for easy set up. Had a beautiful view. Easy access to the aforementioned amenities. Nice this is it’s within walking distance of a general store, the post office, and the hot springs. Really great place to camp
John S
VerifiedJuly 25, 2025 • Stayed at: Mammoth site #13, Loop: A
Nice and clean
kerri s
VerifiedJuly 23, 2025 • Stayed at: Mammoth site #64, Loop: A
the bathrooms were very nice and the campsites were super clean. The camp itself is in a really nice area close by to the town.
Lena H
VerifiedJuly 22, 2025 • Stayed at: Mammoth site #13, Loop: A
Nice campground. We had a wonderful stay!
Leigh S
VerifiedJuly 22, 2025 • Stayed at: Mammoth site #76, Loop: Tent
A great site, with good views and a sense of seclusion, yet close enough to Mammoth for convenience.
Rand F
VerifiedJuly 21, 2025 • Stayed at: Mammoth site #64, Loop: A
Wonderful place to camp EXCEPT for the lack of a place to wash dishes. "Just rinse the soap off in the bathroom," said the ranger. Many folks washed all their dishes there, which was not totally appropriate, but convenient and about the only way to do a decent wash job, despite the lack of space. Other than that mild inconvenience, it was a great place to pitch a tent and wake up to terrific sunrises.
Jessamine S
VerifiedJuly 20, 2025 • Stayed at: Mammoth site #16, Loop: A
The campgrounds were great, well-maintained, and close to the town of Mammoth, which was great to grab an ice cream! A thing to note about our particular site (16) - the tent area was down the hill a bit surrounded by some bushes. We didn't want to walk through bushes in the dark at night, so we opted to pitch our tent in the central area instead. This was all gravel, which meant some of our tent pegs got bent.
Location Mammoth Campground (Yellowstone)
Address:
Yellowstone National Park
Yellowstone, WY, 82190
United States
Latitude & Longitude: 44.9736 / -110.693
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: June 4, 2026
