License, verbatimUS-PD
The New York Public Library states no known U.S. copyright for this item. Pinax admits it as US-PD only because the work predates 1900, making public domain near-certain worldwide; status outside the U.S. is not asserted and reuse elsewhere is the user's responsibility. Credit: From The New York Public Library.
Photographs showing landscapes, geological and other features of portions of the western territory of the United States, obtained in connection with geographical and geological explorations and surveys west of the 100th meridian, seasons of 1871, 1872 and 1873. 1871 (from title). The New York Public Library.