CROOKSTON, a city of north-western Minnesota, on the Red Lake river, 18m. from the North Dakota border; the county seat of Polk county. It is on Federal highways 2 and 75; is served by the Great Northern and the Northern Pacific railways; and has an airport. The population was 6,825 in 19 20 ; in 193o, 6,321 by the Federal census. Dams on the river provide fine water-power, and the city has varied manufactures, notably flour, furs and tow. It has a large jobbing business, and is an important distributing point for wheat, dairy products and live stock. The North-west School of Agriculture of the University of Minnesota, and its North-west Agricultural Experiment Station, are located here. The Red River valley winter show (of live stock and agri cultural products) is held at Crookston annually. An international air-meet was held here in May, 1928. Crookston was settled about 1872, and was chartered as a city in 1883. It was named after an early settler, William Crooks.