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Summer hours:7:30am - 6:00pm Mountain Daylight Time- Memorial Day through Labor Day.
Winter hours: 8:00am - 4:30pm Mountain Standard Time- Closed Thanksgiving, Christmas and New Year's.
Did You Know? That the Missouri River flowed north into the Hudson Bay until the Ice Age glaciers diverted it to its present route?
Last Updated: July 25, 2006 at 00:22 EST