Stony Ridge Observatory, Astronomical observatory in Angeles National Forest, California, United States.
The observatory stands at 1730 meters elevation on a ridge above Devil's Canyon, featuring a 760-millimeter Newtonian-Cassegrain telescope for celestial observations.
Built by amateur astronomers in 1957, the observatory housed California's eighth-largest telescope at the time, contributing to lunar photography projects with Lockheed.
The facility maintains a continuous program of astronomical research, education, and public outreach activities through its nonprofit organization status.
The observatory requires a 45-minute drive from Pasadena along Angeles Crest Highway and operates with electricity but needs water to be transported to the site.
Three asteroids were discovered at this location, including asteroid 10168 Stony Ridge, named to commemorate the fifteen founding members of the observatory.
Location: California
Inception: 1957
Elevation above the sea: 1,730 m
Website: http://stony-ridge.org
GPS coordinates: 34.30127,-117.99780
Latest update: March 18, 2025 07:52
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