
Orbisonia and Rockhill anchor the northern landscape of this Central Pennsylvania survey, situated along the corridor of the East Broad Top RR. The map illustrates a region defined by the rhythmic parallel ridges of the Ridge-and-Valley province, including Jacks Mountain, Shade Mountain, and Tuscarora Mountain. Transportation infrastructure is a central theme, showing the early path of the Pennsylvania Turnpike as it pierces through Tuscarora Mountain via the Tuscarora Tunnel.
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7 editions found
1900 · Mercersburg
USGS Topo · 1:62,500
1901 · Huntingdon
USGS Topo · 1:62,500
1902 · Chambersburg
USGS Topo · 1:62,500
1902 · Mercersburg
USGS Topo · 1:62,500
1904 · Huntingdon
USGS Topo · 1:62,500
1919 · Mattawana
USGS Topo · 1:62,500
1922 · Mt Union
USGS Topo · 1:48,000
1923 · Shippensburg
USGS Topo · 1:62,500
1924 · Mt. Union
USGS Topo · 1:62,500
1925 · Needmore
USGS Topo · 1:48,000