Southern Pacific AC4400CW #335 is one of a handful of SP numbered units remaining on the Union Pacific roster. Photographed via the new 114th South overpass, five GE motors lead 49 cars of general freight west through Riverton on the MNYRO (Denver, CO - Salt Lake City, UT) manifest. The recently completed Utah Transit Authority Provo-Salt Lake City 'FrontRunner' commuter rail line runs parallel to the UP Provo Subdivision between the two Wasatch Front metro areas.
