Sounds as though those lead units were pulling fairly hard. But where is "Hair"? I don't recognize it? Obviously the power is run through from out west somewhere.
Box, CP Hair is in downtown Dalton GA. 737 is west/northbound empty powder river coal hoppers returning west from Georgia Power's Plant Scherer just north of Macon GA.
OK, thanks. Now I wonder the origin of that name. Possibly as odd as a hair salon or barber shop nearby? Ha ha.