You are in the CarrTracks website Picture Gallery.
BN engine 5573 leads a sting of UFIX gondolas loaded with Powder River Basin coal for the Smithers Lake power plant near Houston on April 2, 1988. The signal at the right is at the north end of SP's Broadway Yard and is showing a double red. Note that the derail is set against any movement out of the yard.
I decided to try a low angle picture as the caboose passed Tower 55. From this picture it looks like Tower 55 is out in the open country. Disk 92