Their debut delayed by installation and testing of Positive Train Control equipment, Rocky Mountaineer’s GP40-3 locomotives last week finally began replacing leased Union Pacific power on the “Rockies to Red Rocks” excursions to Glenwood Springs, Colo., and Moab, Utah. On Wednesday, May 25, 2022, they head west from Denver at Arvada, Colo., at milepost 9.75 on the former Rio Grande main line’s Moffat Tunnel Subdivision. The train is featured in “Rocky Mountaineer’s Colorado adventure” in the May 2022, issue of Trains.
