Our Mount Rainier National Park Map is a piece designed for those who love the outdoors. Mount Rainier stands as an icon in the Washington landscape. An active volcano, Mount Rainier is the most glaciated peak in the contiguous U.S.A., spawning six major rivers. Subalpine wildflower meadows ring the icy volcano while ancient forest cloaks Mount Rainier’s lower slopes. Wildlife abounds in the park’s ecosystems. A lifetime of discovery awaits.