BNSF GE B40-8 No. 573 sits alone at BNSF’s 23rd Street locomotive facility in Denver, Colorado, on December 18, 2017. This former Santa Fe locomotive was built in 1988 as No. 7423, and was later renumbered BNSF No. 8613, before getting its current number. A KCS EMD SD70ACe and a “Grinstein” EMD SD70MAC sit in the background among a sea of orange locomotives at this former Chicago, Burlington & Quincy and later, Burlington Northern, facility.