This is UP train AMXAS 11 (automotive, Mexico City, MX to Alton & Southern's Gateway Yard at E. St. Louis, IL) sitting at Columbia, IL to wait their turn into Alton & Southern Railway's Gateway Yard. Trains stack up south of East St. Louis frequently while waiting for a slot in the yard. 1-14-2006. http://n691lf.rrpicturearchives.net