Pine Grove Mills serves as a primary settlement hub where the ridge-and-valley terrain of central Pennsylvania defines the local geography. The landscape is dominated by the massive profile of Tussey Mountain and Leading Ridge, creating distinct corridors like Harrys Valley and Stone Valley. Historically significant sites are scattered throughout these lowlands, including the industrial remains at Monroe Furnace and several small rural hamlets such as Charteroak and Masseyburg.
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This is the sole edition of this map. No revisions or reprints were ever made.
1908 · Bellefonte
USGS Topo · 1:62,500
1909 · Bellefonte
USGS Topo · 1:62,500
1919 · Menno
USGS Topo · 1:62,500
1922 · Philipsburg
USGS Topo · 1:62,500
1923 · Tyrone
USGS Topo · 1:62,500
1929 · Tyrone
USGS Topo · 1:48,000
1933 · Tyrone
USGS Topo · 1:62,500
1935 · Allensville
USGS Topo · 1:62,500
1938 · Allensville
USGS Topo · 1:62,500
1939 · Philipsburg
USGS Topo · 1:62,500