Greenhorn warbonnets Climbing Mullan Pass, a westbound BNSF manifest freight works up the 2.2% grade at Greenhorn Trestle between Weed and Skyline, Montana, on June 29, 2016. Two warbonnet Dash 9s (Nos. 736 and 786) provide some colorful head-end power and are assisted by four MRL EMD SD70ACes, not visible yet, but audible, pushing on the rear of the train passing through Weed.
