Pine Grove serves as the primary hub in this landscape of ridges and valleys, where the Swatara Creek winds through the gap between Second Mountain and Swope Mtn. The topography is dominated by the massive presence of Broad Mountain to the north and Blue Mountain to the south, creating a natural corridor that has shaped local transportation for generations. The map reveals a network of small mining and residential communities such as Joliett, Keffers, and Lorberry, many of which developed around the area's geological resources.
108 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Lebanon
USGS Topo · 1:62,500
1892 · Lykens
USGS Topo · 1:62,500
1892 · Hummelstown
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
1899 · Lebanon
USGS Topo · 1:62,500
1924 · Hummelstown
USGS Topo · 1:62,500
1943 · Lebanon
USGS Topo · 1:62,500
1943 · Lykens
USGS Topo · 1:62,500