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.
General view of Hydraulic Mining Co. camp at Oro near Clifton, Arizona [top]; Incline of Coronade Mine near Clifton, Arizona. 3,500 ft. long. Copper mine on the summit. Sold in 1883 for $2,000,000. The longest incline rail road in Arizona [bottom]. 1883 (from title). The New York Public Library.