The Rostrum, Pulpit Terraces, Mammoth Hot Springs. Yellowstone National Park, Wyoming. 1871.

Handwritten information on back of photograph: The Rostrum, with unidentified man, Pulpit Terraces, Mammoth Hot Springs, Yellowstone National Park. W.H. Jackson, photographer, Hayden Survey, HS-235, 8x10, 1871 series. Information printed on front of photograph: Mammoth Hot Sprg, The Rostrum. Stamped information on back of photograph: Credit Line: U.S. Geological Survey, Department of the Interior, photo no. HS-235, 8x10, 1871 series. No index card. No information located in the Descriptive Catalog of the Photographs of the United States Geological Survey of the Territories, W. H. Jackson, Photographer, Second Edition, Illustrated.