Report Preface: This report describes the extent to which rail and truck transportation factors have contributed to the change in the relative importance of the five major producing areas in California, Idaho, Maine, New York, and North Dakota-Minnesota (combined). It also indicates the movement of fresh potatoes from those areas to principal destinations. The production data are for the years 1947 through 1963 and unload data are for the years 1958 and 1963. The Farmer Cooperative Service helped to plan this study and supplied the rail freight rates used in the analysis of freight charges. Truck freight rates were obtained from truck brokers, shippers, and other sources acquainted with transportation in the potato producing areas studied.