
Blue Mountain dominates the northern horizon of this map, its ridge-line traversed by the Appalachian Trail and protected within State Game Lands No 168. At the base of this natural barrier, the gap provides a corridor for industry and transit, centered on Wind Gap and the neighboring borough of Pen Argyl. The landscape south of the ridge transitions into a high-density industrial and residential patchwork, where numerous quarries reflect the region's deep ties to slate and mineral extraction.
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5 editions found
1890 · Easton
USGS Topo · 1:62,500
1891 · Easton
USGS Topo · 1:62,500
1891 · Delaware Water Gap
USGS Topo · 1:62,500
1893 · Delaware Water Gap
USGS Topo · 1:62,500
1894 · Allentown
USGS Topo · 1:62,500
1914 · Wind Gap
USGS Topo · 1:62,500
1916 · Wind Gap
USGS Topo · 1:62,500
1932 · Easton
USGS Topo · 1:62,500
1936 · Delaware Water Gap
USGS Topo · 1:48,000
1939 · Allentown
USGS Topo · 1:62,500