Clearwater Wilderness is a 14,647-acre protected wilderness in the North Cascades of northern Washington within the Mount Baker-Snoqualmie National Forest, established by Congress in 1984 as part of the National Wilderness Preservation System. Bordering Mount Rainier National Park on its southern edge, it includes high ridges, streams, small lakes, and dense old-growth forest. Bearhead Mountain rises to 6,089 feet, and the headwaters of the Clearwater River begin here. Its wet, snowy climate supports Douglas fir, western hemlock, western redcedar, and wildlife such as bears, elk, cougars, marmots, pikas, eagles, and grouse. Trails provide access to lakes, meadows, and forest scenery.