A mountainous sub-region within the Central Washington Cascades, bounded by Lake Kachess, Cooper River, Cle Elum River, and upper Yakima River. Notable landforms include Red Mountain, Thorp Mountain, Kachess Ridge, French Cabin Mountain, Mt. Baldy, and Easton Ridge.
Red Mtn Ski Tour via Cooper River Road—Northeast Ridge (Kachess Mountains, WA)
Trip Date: April 15, 2007 Red Mountain Ski Tour Cooper River ValleyRed Mountain False Summit Trip Report
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