[U.S. Geological Survey pack train on trail along the…

William Henry Jackson • 1871 • Wyoming, Yellowstone River

[U.S. Geological Survey pack train on trail along the Yellowstone…, Wyoming, Yellowstone River, 1871

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1 photographic print.

Credit: Library of Congress, Prints & Photographs Division, FSA/OWI Collection. No known restrictions on publication (Library of Congress).