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
Rates, Sites & Availability
81 Sites Available
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Site Details
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81 Sites Available
No available sites
All sites are booked for your selected dates. Try showing all sites to see booked options, create an alert to be notified when something opens up, or adjust your dates.
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
Audrey B
VerifiedMay 29, 2026 • Stayed at: Mammoth site #33, Loop: B
Great amenities, nice bathrooms, super close to Mammoth general store and Gardiner, MT for food and groceries
James D
VerifiedMay 29, 2026 • Stayed at: Mammoth site #2, Loop: A
Simple but very good site. Place was quiet and safe for us.
Karen C
VerifiedMay 29, 2026 • Stayed at: Mammoth site #42, Loop: B
I appreciate the hosts so much. The fact they actually got into their cart each evening around nine pm and went around the campground. this way I can be assured people aren’t running their generators past permissive hours.
Ethan S
VerifiedMay 28, 2026 • Stayed at: Mammoth site #74, Loop: Tent
Amazing campground and very friendly staff. The staff would bring us leftover firewood after we talked to them for a bit. Super awesome experience!
Dean D
VerifiedMay 28, 2026 • Stayed at: Mammoth site #58, Loop: A
Mammoth campground is always an nice area. But ITS THE ONLY CAMPGROUND IN THE PARK WITHOUT A DUMP STATION!! That's ridiculous! We had to hook on & take our trailer down to Gardiner to dump. Please, please, please consider putting one in!!
JASON E
VerifiedMay 26, 2026 • Stayed at: Mammoth site #21, Loop: A
Site was clean when we arrived. Views were awesome!
Carol J
VerifiedMay 25, 2026 • Stayed at: Mammoth site #55, Loop: A
We had a great time! Very clean and friendly.
Dianne M
VerifiedMay 23, 2026 • Stayed at: Mammoth site #6, Loop: A
You hosts were amazing, the bathrooms, the campsite and everything about the Mammoth Campgrouds were meticulous! Thank you for such a wonderful time.
Josef K
VerifiedMay 23, 2026 • Stayed at: Mammoth site #75, Loop: Tent
This CG has a nice location to explore yno, and it has HEATED toilets. but! 1) The layout of tent sites is really mad! They are either super small, or for some reason is the neighbours table much closer to your tent pad than your own, so good luck with sleep. Or to get from Bearbox to table you need to go through your tentpad... and tgere are paths (seems official, not just wild paths) through your tent site to bath rooms. 2) tent pads? tgey are sulersmall. Most visitors does not fit so they are building tents on driveway and then they have no space for car and are parking in a bad way. It seems to be tolerated by CG host. 3)tent only loop is surrounded by RV loop and even if there are no gens, if someone above you has a van with gas heating on during night, good luck sleeping again. This CG is wierd.
Diane T
VerifiedMay 23, 2026 • Stayed at: Mammoth site #30, Loop: B
Beautiful
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
