Etna Furnace and Union Furnace stand as industrial markers in this central Pennsylvania landscape, where the valley's geological resources historically supported iron production. The drainage network is dominated by the Frankstown Br Juniata River and the Little Juniata River, which converge near the settlement of Spruce Creek. This 2013 survey reveals a pattern of rural communities such as Yellow Spring, Blairfour, and Shaffersville that follow the natural corridors of Canoe Valley beneath the ridge of Canoe Mountain. Notable hydrologic features like Arch Spring and Sinking Run reflect the limestone-rich topography of Sinking Valley, where water often disappears into the subsurface. These named springs and runs have long dictated the placement of early homesteads and small-scale industry throughout the region.
82 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.
1901 · Huntingdon
USGS Topo · 1:62,500
1902 · Hollidaysburg
USGS Topo · 1:62,500
1903 · Hollidaysburg
USGS Topo · 1:62,500
1904 · Huntingdon
USGS Topo · 1:62,500
1920 · Altoona
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
1946 · Tyrone
USGS Topo · 1:62,500