Olympic National Park

Washington State's park uniquely encompasses three distinct ecosystems within 922,651 acres: glacier-capped Olympic Mountains, old-growth temperate rainforest receiving 140 inches of rain annually (60% more than the average U.S. rainforest), and 73 miles of wild Pacific coastline. Designated a UNESCO Biosphere Reserve in 1976, it is home to 8 endemic species found nowhere else on Earth, outperforming the runner-up in endemic species count by 3.