Granite Mountain is a 7,144-foot double-summit peak in Washington’s Wenatchee Mountains, within the Alpine Lakes Wilderness and Okanogan–Wenatchee National Forest on the Chelan-Kittitas county line. The highest point on the divide between Hyas Lake and French Creek, it sends water west to the Cle Elum River and east into French Creek. Its rugged setting of ridges, granite walls, glacial valleys, and many lakes reflects the long geologic shaping of the Cascades through tectonic activity, terrane accretion, and Pleistocene glaciation. The last major glacial retreat here began about 14,000 years ago, and the Pacific Crest Trail passes below its western base.