String-bound photo album with embossed cover and attached label with "Yellowstone Park, Wyo. 1927" on front. It contains 92 black and white photographs, each with a title and/or description in typescript. Images depict the Mammoth Hot Springs district, including a permanent camp, hotel, and views clouds and surrounding mountains. Of note are images of visitors milling around Old Faithful, "Mr. Gearjammer" the park bus driver, upper and lower Yellowstone Falls, and Dunraven Pass ranger station. Also includes images of marmots, black bears, and a grizzly bear with quadruplet cubs.