
Grantville serves as the primary settlement hub in this portion of Dauphin County, where the valley floor meets the imposing ridges of the Appalachian Mountains. The landscape is defined by a series of parallel heights, including Peters Mountain, Stony Mountain, and Second Mountain, which create isolated corridors for water and transit. Within these valleys, Stony Creek flows along an Old RR Bed, now utilized as the Stony Valley Railroad Grade Trl, illustrating the transition from industrial extraction to recreational use.
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1892 · Lykens
USGS Topo · 1:62,500
1892 · Hummelstown
USGS Topo · 1:62,500
1892 · Harrisburg
USGS Topo · 1:62,500
1893 · Lykens
USGS Topo · 1:62,500
1893 · Millersburg
USGS Topo · 1:62,500
1899 · Harrisburg
USGS Topo · 1:62,500
1924 · Hummelstown
USGS Topo · 1:62,500
1924 · Harrisburg
USGS Topo · 1:62,500
1943 · Millersburg
USGS Topo · 1:62,500
1943 · Lykens
USGS Topo · 1:62,500