Harquahala Mountains
The very windy summit can be reached via a rough, 4-wheel drive road. This high point was used by the U.S. Army in the 1880s as a heliograph station. Then in 1920 a Smithsonian Astrophysical Observatory was constructed on this summit and operated for five years before being relocated to Table Mountain Observatory, near Wrightwood, California. Its purpose was to study variations in the solar output as a possible factor in climate prediction.
Designated in 1990, the 22,880-acre (93 km) the Harquahala Mountain Wilderness lies to the north and east of the summit at 33°49′40″N 113°17′52″W / 33.82778°N 113.29778°W on the Maricopa / La Paz county line.
At the southwest end of the mountain range, there are gypsum mines and in the past there were extensive mines for gold and silver.
See also
References
- ^ D. W. Grantham (1984). "The Story of Harqua Hala". Desert Magazine. Vol. 48, no. 4. pp. 4–11. ISSN 0194-3405. Retrieved March 29, 2015.
Further reading
- Burggraaf, Pieter (1996). Harqua Hala Letters, The Story of Arizona’s Forgotten Smithsonian Observatory (PDF). Arizona BLM Cultural Resource Publication. Arizona State Office of the Bureau of Land Management. Archived from the original (PDF) on April 2, 2015. Retrieved March 29, 2015.
- Arizona Atlas and Gazetteer. DeLorme Mapping, Freeport, Maine. ISBN 0-89933-202-1
External links
- Harquahala Mountains Wilderness - BLM
- Harquahala at wilderness.net
- Harqua Hala – Ghost Town of the Month at azghosttowns.com