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Coast Geodetic Survey
Historical Maps
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Hoosac Mountain, the site of a pendulum gravity station. Charles S. Peirceconducted operations here in 1873.
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Hoosac Mountain, the site of a pendulum gravity station. Charles S. Peirceconducted operations here in 1873.
4/3/2019 11:57:54 AM
Date:
1873
Location:
Massachusetts, Hoosac Mountain
Subject:
Coast and Geodetic Survey
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