You pass through tiny Gap Junction, the connecting point for
the branch line to Cumberland, Maryland, and connections
with the B&O and Western Maryland. The signal in the one-
siding town of Rockview is clear, so you pass through without
stopping. On your way to East Valley, the signal drops as you
pass. You slow down as you pass the station in East Valley, and
notice crews getting ready on the snapper (the PRR term for
a helper engine) track . You ease the train to a stop so that a
snapper can be added behind the cabin.