Page 22: of Maritime Reporter Magazine (January 1969)

A 48-car freight train en route to Alaska. The ocean-going tug, Sea Swift, has the train undertow aboard the Hydro-Train barge, Kenai. Sea Swift is the newest in a fleet of tugs used by Puget Sound Tug& Barge Company to "railroad" freight from Seattle across the Gulf of Alaska to Whittier. She'll tow one, and sometimes two 400' Alaska Hydro-Train Division barges, each with a capacity of up to 48 railroad freight cars. In a blow, she tackles 40 mph winds with waves as high as 30' and still maintains a 12-knot average for the trip.