Mammoth Campground
44.9736, -110.6932 · Park boundary: National Park Service
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Reservation detailsThe only campground in the park open year-round, Mammoth Campground—elevation 6,200 feet (1890 m)—is located five miles south of the park's North Entrance. Scattered juniper and Douglas fir trees provide shade during hot summer months. The campground is close to fishing, hiking, and the Mammoth Hot Springs. Great wildlife viewing opportunities abound with elk and bison occasionally passing through the campground. The campground is run by the NPS.
- Every day
- All Day
Mammoth Campground is typically open year-round, though part of the campground is closed mid-October through April. Reservation-only 4/15-10/15. Checkout time is 10 am.
Interagency Access and Senior Pass holders receive a 50% discount.
Sites are reservation-only from early April to mid-October and first-come, first-served from mid-October to late March on Recreation.gov. Individual campsites at this campground can be reserved up to six months in advance. Reservations open on a rolling basis, meaning you can book your site exactly six months before the date of your stay, as long as reservations are available for that time.
- Amphitheater
- Yes - seasonal
- Cell reception
- Yes - year round
- Drinking water
- Yes - year round
- Firewood for sale
- Yes - seasonal
- Food storage lockers
- Yes - year round
- Host on site
- Yes - seasonal
- Toilets
- Flush Toilets - year round
- Trash & recycling
- Yes - year round
- Camp store
- No
- Dump station
- No
- Ice for sale
- No
- Internet
- No
- Laundry
- No
- Showers
- None
- RVs
- Allowed
- Trailers
- Allowed
- Access roads
- Paved Roads - All vehicles OK
- Classification
- Developed Campground
- Cell service
- There is a cell phone tower near Mammoth Hot Springs: check with your provider to verify coverage. The number of people in the busy summer months of July and August can overwhelm cellular circuits resulting in an inability to send or receive a call, text, or data.
Paths in the campground area are compacted gravel/dirt with some gradient change. In some cases, boardwalks have been constructed to provide easier access to facilities.
Five accessible campsites, accessible routes along paved roadway, ramp to amphitheater. Accessible shower facilities available in Gardiner, Montana.
Wood and charcoal fires are permitted, though special fire restrictions are occasionally put in place when the danger of wildland fires is great. If you plan to light a fire in the park, please ask about current fire restrictions at the entrance station when you arrive or email our Visitor Services Office immediately prior to your visit. Propane grills and stoves are normally not restricted.
From mid-October through April, the back loop of the campground is closed.
Located at Mammoth Hot Springs, five miles south of the North Entrance.
Yellowstone's weather can vary greatly within a day and throughout the park. Snow can fall every month of the year. Summer highs reach 70–80°F (25–30°C) during the day, but nights can be cool (and it may freeze at higher elevations). During spring and fall, daytime highs range from 30–60°F (0–20°C), with overnight lows below freezing. Winter temperatures range from 0—20°F (-20—-5°C) throughout the day, with sub-zero temperatures overnight.
Overnight camping or parking is only allowed in designated campgrounds or campsites. Campsite occupancy is limited to six people per site. Checkout time is 10 am. 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. Unless posted otherwise, wood and charcoal fires are permitted in all campgrounds except the Fishing Bridge RV Park. Propane grills and stoves are usually unaffected by fire restrictions. All odorous items that may attract bears, including food, cooking gear, toiletries, and garbage, must be kept secured when not in use. Bear-proof storage boxes are available at many campsites. Where permitted, generators may only be operated from 8 am to 8 pm (60 dB limit). Generators are not permitted at Indian Creek, Lewis Lake, Pebble Creek, Slough Creek, or Tower Fall.
Location, hours, and facility details confirmed against the National Park Service registry.
National Park Service registryChecked 2026-08-04
Can you reserve a campsite at Mammoth Campground?
Yes. Mammoth Campground in Yellowstone National Park has 85 sites that can be reserved in advance.
How many campsites does Mammoth Campground have?
Mammoth Campground in Yellowstone National Park has 85 campsites.
What is the maximum RV length at Mammoth Campground?
Mammoth Campground takes RVs, but the National Park Service does not publish a maximum length for it. Call the park before booking a long rig.
How much does it cost to camp at Mammoth Campground?
Mammoth Campground in Yellowstone National Park charges $25 per night.
Are there showers at Mammoth Campground?
No. Mammoth Campground in Yellowstone National Park does not list showers.
Is there drinking water at Mammoth Campground?
Yes. Mammoth Campground in Yellowstone National Park lists drinking water: Yes - year round.
Is there cell service at Mammoth Campground?
Yes. Mammoth Campground in Yellowstone National Park lists cell reception: Yes - year round.
Is there a dump station at Mammoth Campground?
No. Mammoth Campground in Yellowstone National Park does not list dump station.
Is Mammoth Campground wheelchair accessible?
Mammoth Campground in Yellowstone National Park: Paths in the campground area are compacted gravel/dirt with some gradient change. In some cases, boardwalks have been constructed to provide easier access to facilities.
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