This image of CSX Engine No. 599 was taken on the night of 2 March 2012, at Milepost 648 in the CSX Railroad yard, located in Pensacola, NW Florida-USA.
The train had six locomotives, and was waiting to depart to the south to start a trip northeast across the Florida Panhandle.
The on-camera speedlight (flash) was used, with the camera in 'S' mode so the flash effect would not be overpowering.