I was passing through Apex today and happened to see a pair of CSX locomotives putting 2 groups of freight cars together to build a larger train before finally heading Southbound out of town. It was a fun shoot but it was H.O..Double.T...HOTT.
Here they have disconnected from their original train and are pulling forward so they can back into the siding and connect the waiting cars.
There was a single locomotive parked in front to the CSX building so I placed it in the shot to add a little more interest to the composition. In this shot they are connected and pulling forward.
The build up complete and heading Southbound.