
Blue Mountain serves as a massive natural barrier in this 1960 survey of Northampton County, famously pierced by the namesake Wind Gap pass. This geological gateway is flanked by Chestnut Ridge to the north and the extensive State Game Lands No 168, which preserved the high ground even as industrial and residential expansion shaped the valley below. The Appalachian Trail follows the ridge line, overlooking a landscape defined by the slate industry and the Erie-Lackawanna Railroad.
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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