Running out their miles on secondary assignments, DRGW’s GP7s and 9s toiled in relative obscurity until their retirement. Under this alternate timeline, DRGW ordered EMD’s GP15T to replace the aging geeps and increase the efficiency of these assignments- the turbocharged units being better suited to the Grande’s mountainous territory. They feature typical DRGW features such as the M-3 horn and nose-mounted gyralight.