Centennial Mountains Rock Lakes National Wildlife Refuge, state and private land, and part of a USDA Agricultural Research Station for sheep. Around 326 vascular plant species have been identified in the Centennials, an unusual plant diversity for the Yellowstone region. Grizzly bears inhabit the area, as nearly all species indigenous to the Greater Yellowstone Ecosystem are present. The north slope of the Centennials rises abruptly 3,000 feet above the Centennial Valley. Centennial Mountains The Centennial Mountains are the southernmost sub-range of the Bitterroot Range in the United States states of Idaho and Montana. The Centennial Mountains include the Western and Eastern Centennial
Sports in the United States has junior leagues, the United States Hockey League and North American Hockey League, but they are more restricted to protect junior players' college eligibility). The Frozen Four is college hockey's national championship. The U.S. now has more youth hockey players than all other countries, excluding Canada, combined. USA Hockey is the official governing body for amateur hockey in the United States. The United States Hockey Hall of Fame is located in Eveleth, Minnesota. Internationally, the United States is counted among the Big Six, the group of nations that have historically dominated international ice hockey competition. (The others include Canada, Finland,