Mammoth Campground is the only campground open year-round in Yellowstone National Park. Located near the north entrance of the park this campground has 85 sites.
The campground is close to Mammoth Hot Springs terraces, the Roosevelt Gate, and easy access to the park's loop road.
You have a high probability of seeing elk and bison while camping here. Ranger programs are offered in the amphitheaters frequently especially during the summer.
The campground is a high sagebrush steppe filled with scattered juniper trees and Douglas fir trees. The trees provide some shade but you will want a shade cover or hat.
Each campsite has plenty of room to truly enjoy a Yellowstone Camping trip.
Season: Mammoth Campground is open year-round.
Number of Sites: 85
Location in the park: five miles south of Gardiner, Montana and the park's North Entrance.
Campsite cost: $20.00
Rates do not include taxes or utility fees and are subject to change.
Interagency Access and Senior Pass holders receive a 50% discount.
Hiker/bicyclist Nightly Fee - $5.00
Payments accepted: cash/check
Reservations: No, All sites are first-come, first-served campground
Latitude/Longitude: N 44 58.4166 W 110.41.59392
Elevation: 6,200 feet (1890 m)
Accessible Sites: Five accessible campsites, accessible routes along a paved roadway, ramp to the amphitheater.
Pets Allowed: Yes, You will want to be aware of the park pet policy
Check out our Yellowstone Camping Guide to learn more about each of the campgrounds in the park.
Mammoth Campground Reservations
Are campground Reservations Available? No, All sites are first-come, first-served.
Mammoth Campground Amenities
There is not a ton of shade in this campground. You may want to bring a cover or make sure you at least have a hat packed with you.
Flush Toilets: Yes
Showers: no, The closest showers are in Gardiner, Montana at the North Entrance Washtub Laundromat.
Is wifi available? Wi-Fi is available at the Albright Visitor Center (free)
Mammoth Hot Springs Hotel & Cabins (fee charged).
Is cellular Phone Service Available? There is a cell phone tower near Mammoth Hot Springs: check with your provider to verify coverage.
Is camp host available on site? Yes
Is firewood available for purchase? yes
Amenities at each campsite:
Firepit in the site? Yes
Picnic Table in the site? Yes
Bear Box in site/area? Yes, Bear boxes are available for most tent sites.
Potable Water? Yes
RV Camping at Mammoth Campground
RV Length: Campground sites that will accommodate a maximum combined length of 40 feet (12.2 m) or more are limited.
Sites that accommodate RVs are either pull-through or back-in with limited width for slide-outs. Sites may not be level.
During winter (November through April), the total vehicle length limit is 30 feet (9.1 m).
Dump Station: No
How to get to Mammoth Campground
Located on the road between the South Entrance and West Thumb.
Important Dates for Campground
Mammoth Campground Regulations
The maximum number of people in a campsite: Maximum 6 persons per site
The number of cars per campsite: Tent sites allow for up to two tents and two vehicles. RV sites allow for one RV (tow included) only. (For reference, 2 motorcycles = 1 vehicle)
Check-in Time: check-in any time of day that there is an unoccupied site.
Checkout time: 10 AM.
Quiet Hours: Quiet hours are from 10:00 p.m. to 7:00 a.m.
Maximum Stay: Camping is limited to 14 days from July 1 through Labor Day, and 30 days for the rest of the year. There is no stay limit at the Fishing Bridge RV Park.
Don't forget to pack
Earplugs - Especially if you are in a tent you may get a lot of road noise.
Mammoth Campground Map
Mammoth Campground Photos
Additional Yellowstone National Park Resources
Things to do in Yellowstone - These are the top things to do that you don't want to miss during your trip!
Yellowstone Lodging Guide -Check out all of the lodges you can stay in while visiting Yellowstone NP.
Don't miss the epic waterfalls in Yellowstone you can easily see while exploring the park.
Yellowstone National Park Facts - Learn more about our 1st National Park and fun facts about the wildlife in the park.
Mammoth Hot Springs Hotel - Find out what it is like to stay in this great Yellowstone lodge.
Lake Yellowstone Hotel - Room photo and videos, what to expect when staying at the Lake Yellowstone Hotel
Camping Tips from a Park Ranger - These are the tips I learned from managing a campground for years.
Grand Teton Ultimate Guide - Epic guide to all the things you need to know to plan a visit to this great park.