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Mount Rainier Wilderness

Posted on Jun 4, 2024 in Washington's Wilderness Areas

More than 97% of Mount Rainier National Park is protected as Wilderness. With 26 named glaciers covering approximately 37 square miles, Mount Rainier is the most heavily glaciated peak in the contiguous United States. While it is difficult to look away from the imposing slopes of Mount Rainier, look closer and you will discover a Wilderness rich in biodiversity. Reflecting the varied climatic and environmental conditions encountered across the area’s 12,800-feet elevation gradient, species known to occur within the park include more than 800 vascular plants, 159 birds, 63 mammals, 16 amphibians, 5 reptiles, and 18 native fishes.  

Designated by the Washington Parks Wilderness Act, introduced by Senator Daniel J. Evans (WA-R) in March 1988. With broad support, the act was quickly passed and signed into law later that year, protecting more than 1.7 million acres in Washington’s three national parks as Wilderness. 

Mount Rainier National Park Trails