Mammoth Hot Springs Hotel & Cabin Yellowstone National Park

The rooms have high ceilings and feel spacious although the furnishings are fairly basic (beds, nightstand, small desk with chair). The closet provides ample storage space thanks to its height. No TV or radio.
The bathroom is large. The tub is on raised feet, and there is no shower.
The map room downstairs off the lobby is beautiful. The wooden map on the wall is a masterpiece with its multiple woods (see if you can find the mistake).
A desk to make reservations and a gift shop also branch off the lobby.
While there is no restaurant in the hotel, three eating options are extremely close (the dining room is just across the parking lot, a one minute walk).