
High elevations and dense waterway networks characterize this portion of Clearfield and Elk Counties, dominated by the prominent peaks of The Big Knob and Little Knob. The landscape is a complex of deep runs and ridges, where the Elk Co Clearfield Co line bisects the northern terrain. Significant riparian features like the Duck Marshes and Mosquito Creek suggest the drainage patterns that have historically shaped land use in this part of the Allegheny Plateau.
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1929 · Karthaus
USGS Topo · 1:62,500
1929 · Clearfield
USGS Topo · 1:48,000
1932 · Clearfield
USGS Topo · 1:62,500
1932 · Karthaus
USGS Topo · 1:62,500
1941 · Benezette
USGS Topo · 1:62,500
1943 · Benezette
USGS Topo · 1:62,500
1945 · Driftwood
USGS Topo · 1:48,000
1945 · Driftwood
USGS Topo · 1:24,000
1947 · Driftwood
USGS Topo · 1:24,000
1957 · Warren
USGS Topo · 1:250,000