
Sandy Ridge is a defining geological and cultural feature on this 1958 survey, where the ridge line serves as a natural boundary between the townships of Decatur Rush, Worth Taylor, and Rush Worth. The landscape is dominated by the industrial and natural intersection of the Penn Central railroad corridors and the extensive wilderness of Moshannon State Forest. Pockets of industry are evident near the settlement of Sandy Ridge and Glass City, where multiple Mine sites are indicated, suggesting the region's historical reliance on mineral extraction.
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6 editions found
1903 · Houtzdale
USGS Topo · 1:62,500
1905 · Houtzdale
USGS Topo · 1:62,500
1920 · Altoona
USGS Topo · 1:62,500
1922 · Philipsburg
USGS Topo · 1:62,500
1922 · Altoona
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
1939 · Philipsburg
USGS Topo · 1:62,500
1944 · Houtzdale
USGS Topo · 1:24,000