Millheim and Aaronsburg anchor the southern portion of this landscape, situated along the floor of Penns Valley. The settlement pattern here reflects the classic Ridge-and-Valley topography of central Pennsylvania, where agricultural communities are concentrated in the fertile lowlands of Sugar Valley, Brush Valley, and Penns Valley, separated by the imposing heights of Nittany Mtn and Brush Mtn. Numerous gaps in the ridgeline, such as Spangler Gap and Smullton Gap, provided the primary transit corridors for local commerce and communication between the valleys.
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This is the sole edition of this map. No revisions or reprints were ever made.
1921 · Howard
USGS Topo · 1:48,000
1921 · Lock Haven
USGS Topo · 1:62,500
1923 · Howard
USGS Topo · 1:62,500
1923 · Lock Haven
USGS Topo · 1:62,500
1924 · Centre Hall
USGS Topo · 1:62,500
1929 · Centre Hall
USGS Topo · 1:62,500
1937 · Millheim
USGS Topo · 1:48,000
1941 · Millheim
USGS Topo · 1:62,500
1943 · Lewistown
USGS Topo · 1:125,000
1944 · Lock Haven
USGS Topo · 1:62,500