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Bench Mark A which is a monolite replica of the Washington Monumentwhich is 12-feet tall and placed under a manhole cover on the south side of theWashington Monument grounds

Description

Bench Mark A which is a monolite replica of the Washington Monumentwhich is 12-feet tall and placed under a manhole cover on the south side of theWashington Monument grounds. Used during leveling operations.

Location

Washington, D. C.

Collection

Geodesy

Keywords

Geodesy