The first farmers here found the lack of transportation and marketing facilities a great problem. Fort Garry and St. Paul were the nearest markets for grain until 1851. In that year Father Belcourt, who had established a mission where the town of Walhalla now stands, found that sufficient power could be obtained from the Pembina River there to operate a small flour mill. The mill was built, and farmers came from as far east as Pembina to patronize it. Generally, however, there was a lack of mills throughout the region. Elevators and shipping points were far apart, and many farmers had to drive their wagonloads of grain from 25 to 100 miles to market. When the railroads were extended westward, elevators were built in the towns and at sidings, greatly simplifying the marketing problem. The new freight lines made it possible for mills to import fuel from the East, but unfortunately the cost of shipment was prohibitive. The development of North Dakota lignite mines, beginning in the 1880's, removed an important handicap to mill operation, however, and later the lowering of freight rates allowed importation of other fuel. Although a large proportion of North Dakota grain is still shipped out, there are now in the State 27 flour mills which in 1931 had an output valued at $12,000,000. The largest of these is the State-owned mill and elevator opened at Grand Forks in 1922 as part of the Nonpartisan League program of State industries. One of the important industries which has grown out of the agriculture of North Dakota is seed production. Potatoes, clover, alfalfa, brome-grass, and corn are shipped out in large quantities. A number of nurseries ship trees, plants, and shrubs. A French nobleman, the Marquis de Mores, was the first person to realize the possibilities of a packing plant in North Dakota. Drawing upon his own and his father-in-law's resources, he established a plant at Medora in 1883. The venture failed, partly because his grass-fed beef, produced at a high cost because of his artless business methods, could not compete with grain-fed meat; but today modern packing plants at Grand Forks and West Fargo prove that the marquis was not the impractical dreamer his contemporaries thought him. Since most of North Dakota's industry is concerned with the processing of agricultural products, no large manufacturing centers have been developed; but mills, warehouses, poultry markets, and creameries have been established near the areas which they serve--many of the finest creameries are in sparsely settled rural areas. Fargo is the only city in the State that manufactures other than agricultural products.