
Fort Devens dominates the southwestern landscape of this 1935 survey, illustrating the military's significant footprint near the junction of Middlesex and Worcester counties. The industrial character of Ayer is evident through its cluster of specialized water bodies, including Plow Shop Pond and Tannery Pond, which supported local manufacturing along the Boston and Maine Railroad. Educational and social institutions are prominent, with the sprawling Groton School and Groton Academy located near the Nashua River, while the Groton Fair Grounds sit to the north.
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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