Merrill, Robert H., 1881-1955, “Coach at Mammoth Hotel,” Digital Collections, accessed April 9, 2025, https://digitalcollections.library.gvsu.edu/document/49345.
Black and white photograph of a horse-drawn coach at the Mammoth Hotel, Yellowstone National Park. Several people can be seen in and around the coach. Lettering on the side of the coach reads Yellowstone Park Transportation Co. Water damage is visible on the image, which was scanned from the negative.