Mammoth Campground

Mammoth is the only Yellowstone campground that stays open all winter. It sits close to Mammoth Hot Springs, Fort Yellowstone and the northern entrance road. Elk often graze right through the sites. It takes reservations in the warmer months and goes first come, first served from mid-October to March.

Good to know

• Winter sites limited to rigs of about 30 ft
• Walk to the hot springs terraces
• Gives easy access to the Lamar Valley road

Best time

Any season, winter is quiet and snowy

Open

Open year-round

Getting there

Sealed road, RVs fine, no hookups

Vehicles

Campervans fine

Dogs

Dogs on a lead

Facilities

• Fire pits
• Picnic tables
• Toilets
• Drinking water

Data: Roadtrip. Things change: check opening times, prices and rules before you go.