US Coast Guard and Geodetic Survey Seismological and Geomagnetic House
US Coast Guard and Geodetic Survey Seismological and Geomagnetic House, Scientific observation building in Sitka, United States.
The Coast Guard and Geodetic Survey House stands at 210 Seward Street with two stories, wooden clapboard exterior, and gambrel roof design.
Built in 1916 by the United States Department of Commerce, this structure served as the first permanent geomagnetic observatory in Alaska until 1940.
The building site previously contained the Russian Tea Garden, reflecting the transition from Russian to American ownership of Alaska in 1867.
The structure contains seven rooms, including three bedrooms upstairs and scientific workspaces with a concrete basement built into solid bedrock.
This location was selected for magnetic research due to its proximity to the North Pole and absence of local magnetic disturbances.
Location: Sitka
GPS coordinates: 57.05111,-135.33500
Latest update: September 23, 2025 14:25
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