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Mount Washington Observatory

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The Observatory's first home, the 1908-built Stage Office of the Mount Washington Summit Road Company.

Mount Washington Observatory Founding Day

*Event Update: Due to inclement weather expected on the summit of Mount Washington, we have decided to move our Oct. 15 Founding Day open house to the Observatory's Administrative Building, located at 2779

Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate. It serves this mission by maintaining a weather station on the summit of Mount Washington, performing weather and climate research, conducting innovative science education programs, and interpreting the heritage of the Mount Washington region. Our weather station is located  on the summit of Mount Washington  in New Hampshire, at Mount Washington State Park.

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