Yellowstone National Park operates 11 campgrounds with over 2,000 campsites, all requiring advance reservations (except Mammoth, which offers first-come, first-served sites October 15–April 1).

Amenities vary by location but include flush toilets, dump stations, and showers at select campgrounds; several campgrounds provide access to fishing and boating opportunities, with Lewis Lake Campground offering a nearby boat ramp for canoes, kayaks, and motorboats.

No car camping or overnight vehicle parking is permitted outside designated campgrounds.