Probably the most well-known accommodation in Yellowstone National Park is the Old Faithful Inn. Listed on the National Register of Historic Places, the Inn features double rooms with bath, double rooms with shared bath, and suites. Reservations should be made well in advance, especially for the summer season.
Located near the north entrance to the park, this is the only hotel accessible by personal vehicle during the winter season. The Mammoth Hot Springs Hotel features 212 units, including standard rooms, two en suite rooms, cabins, and cabins with a hot tub.
For those looking to get a little closer to nature, Yellowstone National Park features 12 developed campgrounds. Others can opt to camp in the backcountry, which requires a backcountry permit. Get a permit from a ranger station or visitor center up to 48 hours prior to your trip into the park's wilderness.
Other lodging options in the park include the Canyon Lodge and Cabins, Grant Village, Lake Lodge Cabins, Lake Yellowstone Hotel and Cabins, Old Faithful Lodge Cabins, Old Faithful Snow Lodge and Cabins, and Roosevelt Lodge and Cabins.
There are plenty of lodging options outside Yellowstone National Park as well. Look for accommodations in gateway cities including Gardiner, Montana; West Yellowstone, Montana; and in nearby Grand Teton National Park.