
The Merrimack River serves as the central artery for this borderland corridor, flowing south through Nashua and Tyngsboro as it crosses from New Hampshire into Massachusetts. This modern survey reveals a landscape where dense residential neighborhoods around Rivier University give way to smaller crossroads settlements like Flints Corner, Swan Corner, and Frederick Corner. The geography is defined by a series of prominent glacial landforms, including Long Hill and Merrill Hill, which overlook the river valley and its numerous tributaries such as Salmon Brook and Deep Brook.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Lowell
USGS Topo · 1:62,500
1893 · Lowell
USGS Topo · 1:62,500
1893 · Groton
USGS Topo · 1:62,500
1905 · Manchester
USGS Topo · 1:62,500
1906 · Milford
USGS Topo · 1:62,500
1918 · Lowell
USGS Topo · 1:62,500
1921 · Lowell
USGS Topo · 1:62,500
1931 · Lowell
USGS Topo · 1:48,000
1931 · Groton
USGS Topo · 1:48,000
1935 · Ayer
USGS Topo · 1:24,000