During my trip to Colorado in 2023 to chase steam we stayed in Alamosa for the Cumbres and Toltec portion of the trip. On October 18th, 2023, I captured this view of PRLX (Progress Rail Leasing) 4685 and 4687, both ex-CSX SD70 units, sitting in the Colorado Pacific Rio Grande Railroad (SL&RG) yard there.
Tech Info: DJI Mavic 3 Classic Drone, RAW, 22mm, f/8, 1/1250, ISO 220.