A&C westbound train 708 was approaching Cadiz, CA, where it will cut away from the train, head around the wye to turn it's power, during which BNSF's Cadiz turn out of Barstow, which has cut away from it's train in the runaround, will couple onto the the A&C train and forward it to Barstow after which the turned A&C power will couple onto the Cadiz turn's train and forward it back east to AZ.