Scope and Content: To establish accurate Massachusetts town boundaries, beginning in 1885 the Topographical Survey Commission sent out field teams to establish and describe triangulation stations and to set monuments designating boundary lines.  These volumes of resulting horizontal directions, triangle sides, and geographical positions are based on the field notebooks of the survey teams.  Calculations were verified, adjusted, and prepared by the U.S. Coast Survey and the U.S. Coast and Geodetic Survey.
Arrangement: Arranged by locality
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