
The ridge-and-valley terrain of central Pennsylvania dominates this late-19th-century landscape, where the jagged heights of Peters Mountain, Stony Mountain, and Sharp Mountain create formidable natural barriers. Between these summits, narrow water gaps like Swatara Gap and Indiantown Gap serve as essential corridors for transport and settlement. The Philadelphia and Reading Railroad Schuylkill and Susquehanna Branch follows the path of Stony Creek through the mountains, while the Lebanon Valley Branch connects established towns like Hummelstown, Palmyra, and Annville across the flatter agricultural lands to the south.
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10 editions found
1891 · Lebanon
USGS Topo · 1:62,500
1892 · Lykens
USGS Topo · 1:62,500
1892 · Hummelstown
USGS Topo · 1:62,500
1892 · Harrisburg
USGS Topo · 1:62,500
1892 · Pine Grove
USGS Topo · 1:62,500
1893 · Lykens
USGS Topo · 1:62,500
1893 · Lebanon
USGS Topo · 1:62,500
1893 · Millersburg
USGS Topo · 1:62,500
1899 · Lebanon
USGS Topo · 1:62,500
1899 · Harrisburg
USGS Topo · 1:62,500