
The Piscataqua River serves as the focal point for this coastal survey, defining the border between Maine and New Hampshire. Maritime and military history dominate the shoreline, where the Portsmouth Naval Shipyard on Seavey Island and several historic fortifications, including Fort McClary State Park and Fort Constitution, guarded the entrance to Portsmouth Harbor. The map illustrates a landscape shaped by both naval defense and coastal commerce, featuring landmarks like the Portsmouth Harbor Lighthouse and the isolated Whaleback Lighthouse at the harbor mouth.
96 named features on this map. Tap any name to fly to it.
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5 editions found
1888 · Newburyport
USGS Topo · 1:62,500
1890 · Newburyport
USGS Topo · 1:62,500
1893 · Dover
USGS Topo · 1:62,500
1893 · York
USGS Topo · 1:62,500
1894 · Newburyport
USGS Topo · 1:62,500
1916 · Dover
USGS Topo · 1:62,500
1918 · Dover
USGS Topo · 1:62,500
1920 · York
USGS Topo · 1:62,500
1932 · Newburyport
USGS Topo · 1:48,000
1934 · Exeter
USGS Topo · 1:62,500