With high elevation terrain, dry desert air, minimal light pollution, and expansive night skies, Inyo County has become one of California’s premier destinations for astronomy, astrophotography, and stargazing.
From Death Valley dark sky festivals to observatories in the Owens Valley, visitors throughout the region can experience some of the clearest night skies in the American West.
Death Valley Dark Sky Festival (Death Valley)
The Death Valley Dark Sky Festival is one of the largest astronomy events in the Eastern Sierra region.
Held annually in Death Valley National Park, the festival includes telescope viewing, ranger-led astronomy talks, astrophotography programs, science presentations, and guided night sky observation.
Death Valley is recognized as an International Dark Sky Park and offers some of the darkest skies in North America.
Owens Valley Radio Observatory (Big Pine)
Located near Big Pine, the Owens Valley Radio Observatory is a major astronomical research facility operated by the California Institute of Technology. The observatory has played an important role in radio astronomy research and scientific observation in the Eastern Sierra for decades. The large radio dishes have become a recognizable landmark along Highway 395 and attract travelers interested in astronomy, science, and Eastern Sierra history.
The Owens Valley Radio Observatory hosts an annual Open House, typically held in early June, that is free and open to the public. During the event, visitors may tour portions of the observatory, learn about radio astronomy research, and climb the catwalk of the observatory’s 130-foot radio telescope.
Outside of the annual Open House, limited group tours may sometimes be arranged through the Bishop Area Chamber of Commerce depending on availability and observatory scheduling.
Eastern Sierra Observatory (Bishop)
The Eastern Sierra Observatory offers astronomy tours, telescope viewing experiences, astrophotography opportunities, and educational night sky programs throughout the Eastern Sierra.
Programs focus on dark sky viewing, astronomy education, and guided stargazing experiences beneath the Sierra Nevada and Owens Valley night skies.
Why Inyo County Is Popular for Stargazing
Several factors make Inyo County one of California’s best destinations for astronomy and night sky viewing:
- high elevation terrain
- dry desert air
- low humidity
- minimal light pollution
- expansive desert and mountain landscapes
These conditions create excellent visibility for stargazing, astrophotography, meteor showers, and Milky Way viewing throughout much of the year.
Know Before You Go
Many astronomy viewing locations throughout Inyo County are remote and have limited services or cell coverage.
Visitors should carry warm clothing, water, navigation tools, flashlights or headlamps, and emergency supplies when exploring nighttime desert or mountain environments.
Please avoid shining lights toward telescopes, photographers, or other night sky viewers.
Leave No Trace
Visitors are encouraged to recreate responsibly while exploring dark sky locations throughout Inyo County.
Stay on established roads and pullouts, pack out all trash, respect wildlife and cultural sites, and help preserve the natural darkness that makes Eastern Sierra astronomy possible
