Northern Arizona University's Walkup Skydome is the third largest clear-span timber dome in the world. It opened in 1977 and provides facilities for football, basketball, indoor track and a variety of other university and community activities. In 2011, Irwin Seating supplied 10,000 new 130.45.35.35 Centurion chairs in two colors to spell out NAU in the seating area. The aisle end standards are provided with a screen printed logo plate.

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