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
Big Horn Mountains Wilderness Big Horn Mountains Wilderness The Big Horn Mountains Wilderness is a wilderness area located in central Arizona, USA, within the arid Sonora Desert. The wilderness lies midway between Phoenix and Quartzsite. Consisting of 21,000 acres, it was established by the United States Congress in 1990. The area contains 9 miles of the Big Horn Mountains, which form the center core of the wilderness. The mountains are surrounded by desert plains. The most prominent peak is Big Horn Mountain, which rises above the desert, other peaks include Burnt Mountain and Little Horn Peak. Activities include hiking, camping, rock climbing, photography, and