BCOL C40-8M 4620Denver CO Denver

And what works here under electric traction?

British Columbia Railway (BCOL) 4620, GE model C40-8M, AKA Dash 8-40CM was on Chicago, IL, CN to Fort Collins, Colorado, train. She was the rear distributed power (2x2) running up the BNSF's Front Range Subdivision. Rare for this unit to be in Colorado, USA.

Denver Regional Transportation District (RTD) operates commuter rail cars under the wire between Denver Union Station and Westminster, CO.