Trona Railway SD-45 TRC 3001 on loan to Union Pacific along with sister 3002-3004, work the Arden yard as a westbound UP stacker continues west. The four some will remain in Las Vegas for ten days before moving east and gaining HCLX reporting marks. Originally purchased from the Sante Fe in 1993, these SD-45's would haul along the 30 mile Trona railway route and interchange with Union Pacific at Searles in the Mojave Desert.