The Allegheny Portage Railroad National Historic Site and the Johnstown Flood National Memorial anchor this portion of Cambria County, marking two of the region's most significant industrial and disaster milestones. The landscape is defined by the steep valleys carved by the Little Conemaugh River and the South Fork Little Conemaugh River, where small coal-era settlements like Ehrenfeld, South Fork, and St. Michael grew alongside the water and rail lines. Near the Staple Bend Tunnel, the terrain reveals the engineering challenges of the early railroad era.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Ebensburg
USGS Topo · 1:62,500
1904 · Ebensburg
USGS Topo · 1:62,500
1904 · Johnstown
USGS Topo · 1:62,500
1907 · Johnstown
USGS Topo · 1:62,500
1908 · Bedford
USGS Topo · 1:62,500
1910 · Bedford
USGS Topo · 1:62,500
1914 · Windber
USGS Topo · 1:62,500
1916 · Windber
USGS Topo · 1:62,500
1944 · Windber
USGS Topo · 1:62,500
1953 · Pittsburgh
USGS Topo · 1:250,000