After performing in Phoenix, the Ringling Brothers and Barnum & Bailey Circus Train has operated over the BNSF for three of the past five years that I've lived here. In 2005, it departed after midnight and I only got video.
In 2006 I was able to catch the train just past Beardsley and chase it up to Castle Hot Springs where the BNSF crew turned it over to the Arizona & California for the trip west to California via Parker.
ES44DC 7683 leads the U-PHXFRS1-10A east of Beardsley towards Castle Hot Springs on the morning of 10 July 06.
I'm working on the photos of the rest of the train as well as the 2007 Circus Train.