Yellowstone National Park offers 11 campgrounds with over 2,000 campsites, with five major campgrounds (Bridge Bay, Canyon, Grant Village, Madison, and Fishing Bridge RV Park) providing amenities like flush toilets, showers, laundry facilities, and dump stations.

Reservations are required and open six months in advance; Bridge Bay and Lewis Lake campgrounds provide access to Yellowstone Lake for boating and fishing activities.

Most campgrounds operate seasonally from May through September, with Mammoth Campground open year-round on a first-come, first-served basis from October 15 to April 1.