Massachusetts Archives


Abstracts of horizontal angles [Board of Harbor and Land Commissioners of Massachusetts]

Part of: Board of Harbor and Land Commissioners of Massachusetts

Abstracts of horizontal angles, 1889-1915.

20 volumes and 4 file folders in 1 record center carton and 2 document boxes
Call no.: EN3.03/645X

Scope and Content: To establish accurate Massachusetts town boundaries, and eventually interstate boundaries as well, beginning in 1885 the Topographical Survey Commission (replaced in this function in 1901 by the Board of Harbor and Land Commissioners) sent out field teams to establish and describe triangulation stations and to set monuments designating boundary lines.  These volumes of abstracts of horizontal angles are based on field notebooks of the survey teams.  Computations were verified, adjusted, and prepared by the U.S. Coast and Geodetic Survey.
Arrangement: Arranged chronologically, thereunder by locality
Notes: Spine title: Boundary survey
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