Rio Grande GP40-2 No. 3130 leads a westbound manifest freight at Tunnel One on the Moffat (12/24/88).

This unit is one of a pair of unusual, late-mode GP40-2's on the railroad.  They incorporated several features of the GP50 series, including the straight sills, jumbo anticlimber, and squared-off traction motor blower housings (on opposite side).