The Burrlington Northern is an HO version of the BN in the Seattle area from Tukwila north to Burlington and east to Skykomish in 1973, before all the pre-merger locomotives had been repainted. It includes four major yards (South Seattle, Interbay, Everett/Bayside, and Burlington) and many associated industrial switching areas. Passenger operations include the Empire Builder to Chicago and the International to Vancouver, BC. Freight operations include transcontinental hot shots, local transfer runs between yards, unit trains of grain, coal, logs or limestone, local switching, interchange trains from the UP and MILW, and classifying yard tracks. There is also a fictitious interchange with a mountain narrow gage HOn3 line which is not included in operating sessions yet.