This map is an excerpt from "Sketch A Showing the Progress of the Survey
in Section No. 1 from 1844 to 1881"
Detail of Map near Martha's Vineyard
Here we see the sight lines and control points used by the US Coast and
Geodetic Survey as the accurate mapping of the seacoast and interior of
Massachusetts was progressing. This was to improve upon the original
1844 surveys by Simon Borden.
To see a more detailed copy of the map click or on the maps above. The
images you will see are low-resolution for web viewing, but you can see
the extent of the road network in your town.