
Ayer stands as a significant regional crossroads in the mid-1960s, defined by the convergence of the Boston and Maine RR and the expansive operations of the Fort Devens Military Reservation. The town is surrounded by a complex network of glacial ponds, including Flannagan Pond, Sandy Pond, and Spectacle Pond, which separate the industrial and military hubs from the academic and agricultural landscapes of the surrounding townships.
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3 editions found
1886 · Lowell
USGS Topo · 1:62,500
1886 · Framingham
USGS Topo · 1:62,500
1887 · Marlboro
USGS Topo · 1:62,500
1889 · Marlboro
USGS Topo · 1:62,500
1889 · Framingham
USGS Topo · 1:62,500
1893 · Lowell
USGS Topo · 1:62,500
1893 · Groton
USGS Topo · 1:62,500
1894 · Framingham
USGS Topo · 1:62,500
1896 · Marlboro
USGS Topo · 1:62,500
1898 · Marlboro
USGS Topo · 1:62,500