You are in the CarrTracks website Picture Gallery.
Earlier that same morning (October 22, 1988), I stopped by the ready track at the Katy Ray yard in Denison to check out the power. On the first track are engine 225, 175, and 374. On the second track is the Katy's last operating F3 unit. You will see some better pictures of this engine later in the series. Engine 401B was retired in December 1988 and donated to the Red River Railroad Museum in Denison.
Nearby are two former Santa Fe CF7s. They have been repainted and renumbered 1002 and 1001. Disk 90