
Anthracite coal country defines the northern reaches of this mid-century survey, where the Reading railroad network links industrial settlements like Minersville, Tremont, and Donaldson. The landscape is a series of parallel ridges including Mahanoy Mountain, Sharp Mountain, and Blue Mountain, the latter of which is crested by the Appalachian Trail. Evidence of the region's extraction economy is visible through sites like Coal Castle and numerous unnamed mines concentrated near Branch Dale and Heckscherville.
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1889 · Catawissa
USGS Topo · 1:62,500
1889 · Pottsville
USGS Topo · 1:62,500
1891 · Pottsville
USGS Topo · 1:62,500
1891 · Lebanon
USGS Topo · 1:62,500
1892 · Catawissa
USGS Topo · 1:62,500
1892 · Lykens
USGS Topo · 1:62,500
1892 · Hummelstown
USGS Topo · 1:62,500
1892 · Shamokin
USGS Topo · 1:62,500
1892 · Mahanoy
USGS Topo · 1:62,500
1892 · Pine Grove
USGS Topo · 1:62,500