The B&O's Greenspring Yard facility is located on the South bank of the Potomac
River, and is the main point of interchange between the Moose Valley and the B&O. The
yard track diagram above shows a unique split stub yard design. This is necessitated by
the small space available in the area. Trains enter on the lower right corner of the
diagram, and proceed up the West lead to the West end of the yard. From there, the road
power stuffs a few cuts of cars onto the available tracks in the receiving yard. After
which time, a Chessie System yard engine will take the remaining cars from the road power
and store them as well. The road engines will then run light to Berkeley Springs, or they
may go to the engine tracks for quick servicing and will be used again for the next
outbound. 
The
yard engine will sort through the recieving yard contents, and rearrange the cuts on the
outbound departure yard tracks. Departing trains are built from the caboose forward, so
the yard switcher will take a caboose to the East yard lead and begin collecting
previously blocked cuts from the departure tracks. After the train is made, power is
assigned from the local engine tracks, or a light engine move from Berkeley Springs is
ordered. Several scheduled trains arrive and depart each day.