Third unit is new HSP-46 for the MBTA
Two SD70Ms lead a short MPRSS west out of Butler as the YBU65 sneaks up behind him to switch the spur hidden by the train.
This un-flagged SD-70 leads this mix TOFC/COFC train through the curves exiting Bard Canyon.
I am rather suprised that the forces at M19a have not put a coat of amour yellow on the "gator".