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Northern Arizona University (NAU) is a public research university based in Flagstaff, Arizona. It was founded in 1899 as the final public university established in the Arizona Territory, 13 years before Arizona was admitted as the 48th state. The NAU Lumberjacks compete in the NCAA Division I, primarily as part of the Big Sky Conference, and have won several national championships, notably in cross country running. At an elevation of 6,950 ft (2,120 m) above sea level, the school's athletic facilities are used by Olympic and professional athletes worldwide for prestige high altitude training.