MILW SW1200 no. 630 trundles by new MP15AC as it s crew handles chores in their Seattle yard. Traffic to and from local industries as well as interchange with BN/UP and Puget Sound barge traffic from area paper and lumber mills along with Canadian and Alaska traffic kept the yard pretty busy. The switchers would handle transfers to and from Black River Jct. near Renton, WA where the mainline from Tacoma turned east, connecting with mainline trains.
