Green Pool on the Robe line at the 60.75 km original order and now aging General Electric built Dash 9-44CW model locomotive 7091 serial 47770 is operating in AutoHaul™ mode with a pair of GE ES44DCi units 8155 and 8165 both in the Rio Tinto stripe livery as they pass a tamper and regulator doing track work. 28th July 2017. GeoData.