Actually the GAP is mostly above ground, but this is a shot inside the three quarters of a mile long Big Savage Tunnel through Big Savage Mountain only a short distance east of the eastern continental divide. This morning I hiked a ten mile stretch of the Passage from Deal, PA to Frostburg, MD with my brother Chris. It was the nicest hiking and biking trail I have ever walked because of vistas like this:
The trail is on an abandoned Western Maryland Railroad right of way which runs from Cumberland, MD to Pittsburgh. PA and connects with the C&O Canal tow path at Cumberland. More photos can be seen here.
