
Blue Mountain dominates this Pennsylvania landscape, with the Appalachian Trail tracing its high ridge above the rural valleys of Lehigh and Schuylkill counties. In the lowlands, a network of small farming communities and industrial sites illustrates the region's mid-century character. Resource extraction is evident near the ridge at the Limestone Quarry and Sand Pit, while the Reading railroad corridor serves settlements like Snyders and Wanamakers.
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7 editions found
1889 · Hazleton
USGS Topo · 1:62,500
1891 · Hazleton
USGS Topo · 1:62,500
1893 · Hazleton
USGS Topo · 1:62,500
1902 · Slatington
USGS Topo · 1:62,500
1909 · Hamburg
USGS Topo · 1:62,500
1911 · Hamburg
USGS Topo · 1:62,500
1922 · Mauch Chunk
USGS Topo · 1:62,500
1924 · Mauch Chunk
USGS Topo · 1:62,500
1937 · Allentown West
USGS Topo · 1:48,000
1942 · Allentown West
USGS Topo · 1:62,500