Campground
GPS Coordinates N 44 58.4166 W 110.41.59392, Yellowstone National Park, WY, 82190
National Park ServiceLast Updated: August 15, 2026
The 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.
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.
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.
Trash & Recycling Collection
Toilets
Cell Phone Reception
Amphitheater
Staff or Host On-Site
Potable Water
Firewood For Sale
Food Storage Lockers
Located at Mammoth Hot Springs, five miles south of the North Entrance.
Nightly Fee
Interagency Access and Senior Pass holders receive a 50% discount.
Wheelchair Access
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.
Internet Information
No Wi-Fi at the campground. Free, public Wi-Fi is available at the Albright Visitor Center.
Cell Phone Information
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.
RV Allowed
Yes
RV Information
Campground sites that will accommodate a maximum combined length of 40 feet (12.2 m) or more are limited. Some will accommodate up to 75 feet total combined length. Most campsites in Yellowstone will not accommodate oversized units. Sites that accommodate RVs are either pull-through or back-in with limited width for slide-outs. Sites may not be level. During winter (mid-October through April), total vehicle length limit is 30 feet (9.1 m).
RV Maximum Length
0
Trailer Maximum Length
0
ADA Information
Five accessible campsites, accessible routes along paved roadway, ramp to amphitheater. Accessible shower facilities available in Gardiner, Montana.
From mid-October through April, the back loop of the campground is closed.
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Trailer Allowed
Yes
Access Roads
Paved Roads - All vehicles OK
Classifications
Developed Campground