Santa Cruz

Zip Code:


Latitude / Longitude:

31°22′15.56″N 110°41′08.66″W / 31.3709889°N 110.6857389°W / 31.3709889



Time Zone:

Mountain (NO DST) (UTC-7)


Duquesne is a ghost town  in the Patagonia Mountains in eastern Santa Cruz County, Arizona, near the international border with Sonora, Mexico. The town, which is currently under private ownership and closed to the public, was once the headquarters of the Duquesne Mining and Reduction Company and is the site of the Bonanza Mine. Washington Camp is approximately one mile northwest of Duquesne and was where the mine’s reduction plant was located.


On June 6, 1890, the post office in Washington Camp was closed and moved to Duquesne, which was also the location of the company headquarters and the Bonanza Mine. Major production began in 1912 and lasted until 1918, with total production at more than 450,000 tons of zinc, lead and copper ore and silver as a byproduct.


June 6, 1890


February 14, 1920

Current Status:

The home still stands, although in disrepair. Other remains include a smaller frame house, a boarding house and brothel, an adobe commercial building and an old cemetery. The schoolhouse was located in between Duquesne and Washington Camp, to serve the students of each community, but has since been demolished. The site is now occupied by a modern A-frame cabin. There is also the ruins of various mining operations in the surrounding hills.


During its heydey, Duquesne boasted 1,000 residents, several businesses and numerous homes, one of which was a large Victorian frame house belonging to George Westinghouse.