Park
Goldendale Observatory State Park is a 5-acre heritage site perched 2,100 feet above Goldendale in Klickitat County, Washington, USA, renowned for housing one of North America's largest public telescopes—a 24.5-inch Cassegrain reflector built by amateur astronomers in the 1960s and dedicated in 1973.
Originally created through community efforts with Clark College to combat light pollution from Vancouver, this educational facility offers guided solar observation programs, evening stargazing sessions by reservation, and panoramic views of the Columbia River Gorge from its renovated interpretive center, which reopened in 2022 after a $6 million upgrade.
Operating seasonally Thursday through Sunday as a Certified Dark Sky Park (though once decertified), it draws 30,000–40,000 visitors annually for hands-on astronomy experiences amid its historic domes and commitment to public science education.
| Address | 1602 Observatory Dr, Goldendale, WA 98620, United States |
| Management | Washington State Parks and Recreation Commission |
| Phone | +1 509-773-3141 |
Goldendale Observatory State Park is located in Washington, United States.
Goldendale Observatory State Park is situated in the state of Washington.
The main phone number for the Goldendale Observatory State Park is +1 509-773-3141.
The address of Goldendale Observatory State Park is 1602 Observatory Dr, Goldendale, WA 98620, United States.
Yes, Goldendale Observatory State Park is family-friendly and attracts visitors of all age groups.
Visitors usually spend a few hours to a full day exploring Goldendale Observatory State Park.
Yes, there are several hotels and accommodations near Goldendale Observatory State Park in Washington.
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