The North Branch Potomac River serves as the winding boundary between Maryland and West Virginia, anchoring a landscape where rail and river history intersect. This area, just south of Cumberland, illustrates a complex 21st-century corridor of industry and aviation, featuring the Greater Cumberland Regional Airport and the specialized facilities of the Allegany Ballistics Lab. The legacy of 19th-century transport is preserved within the Chesapeake and Ohio Canal National Historical Park, which runs parallel to the modern CSX railroad lines that still navigate the river's tight bends through Welton Tunnel.
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1891 · Romney
USGS Topo · 1:125,000
1898 · Frostburg
USGS Topo · 1:62,500
1899 · Flintstone
USGS Topo · 1:62,500
1900 · Flintstone
USGS Topo · 1:62,500
1901 · Frostburg
USGS Topo · 1:62,500
1908 · Frostburg
USGS Topo · 1:62,500
1920 · Keyser
USGS Topo · 1:62,500
1921 · Keyser
USGS Topo · 1:48,000
1921 · Hanging Rock
USGS Topo · 1:48,000
1922 · Keyser
USGS Topo · 1:62,500