Harquahala Peak Observatory

Near Wenden, Arizona

Harquahala Peak Observatory does not offer reservations through Recreation.gov. Please take a look at the area details below for more information about visiting this location. Enjoy your visit!



Harquahala Peak Observatory was built in 1920 by the Smithsonian Astrophysical Observatory to measure and record solar activity. Although deserted now, from 1920-1925 a hardy group of scientists lived and worked atop the highest mountain in southwestern Arizona (5,681 foot elevation). How these individuals lived, worked, and relaxed up on this peak, struggling with its seclusion and weather, represents an enlivened story of dedicated scientific pursuit and American inventiveness.

Know Before You Go