The world's first purpose-built container vessel was "Clifford J. Rodgers", built in Montreal in 1955 and owned by the White Pass and Yukon Corporation. Her first trip carried 600 containers between North Vancouver, British Columbia, and Skagway, Alaska, on November 26, 1955; in Skagway, the containers were unloaded to purpose-built railroad cars for transport north to Yukon, in the first intermodal service using trucks, ships, and railroad cars. Southbound containers were loaded by shippers in Yukon and moved by rail, ship, and truck to their consignees without opening. This first intermodal system operated from November 1955 until 1982.