In dictionaries:
Sideling Hill
Sideling Hill, also Side Long Hill, is a long, steep, narrow mountain ridge in the Ridge-and-Valley (or Allegheny Mountains) physiographic province of the Appalachian Mountains, located in Washington County in western Maryland and adjacent West Virginia and Pennsylvania, USA.
Sideling Hill Tunnel
one of three original Pennsylvania Turnpike tunnels abandoned (this one in 1968) after two massive realignment projects.
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