The Stephen Mather Wilderness is a 634,614 acres wilderness area honoring Stephen Mather, the first director of the National Park Service. It is located within North Cascades National Park, Lake Chela

The Lake Chelan-Sawtooth Wilderness is a 153,057-acre protected wilderness area located within the Okanogan and Wenatchee national forests in Washington State. The wilderness borders Lake Chelan Natio