Rocking chairs await weary travelers in this luminous early linen view of the Mammoth Hotel lobby at Yellowstone National Park — two large American flags drape from the columns, a floral centerpiece anchors a small table in the foreground, and the registration desk gleams in the middle distance, evoking the era when a national park stay was a grand patriotic adventure. The Mammoth Hot Springs Hotel was substantially rebuilt in the late 1930s, making this interior view — with its specific furniture arrangement and flag displays — a rare document of an earlier configuration. The card was photographed by J.E. Haynes, the official photographer of Yellowstone National Park, whose numbered series are among the most sought-after early park cards. The 1-cent domestic / 2-cent foreign stamp box on the back dates the card's printing to the postal rate era prior to 1952.