This paper presents the results of the corn portion of the 1985 grain flow survey and makes comparisons with 1977 when the previous survey was done. The most significant change from 1977 was the increase in exports from the Pacific Northwest ports from 15 million bushels to over 290 million in 1985. This was accomplished by an increase in rail shipments from Nebraska, Minnesota, and South Dakota. The decline in European Economic Community demand reduced corn movements through the Great Lakes and Atlantic ports and, consequently, truck movements to those ports. Trucks increased their share of domestic movements. The large 1985 corn crop and subsequent increase in stocks reduced the volume of interstate movements and the length of shipping distances. Total corn "bushel miles" were less than would be expected in a year when corn supply and disappearance were more in balance.