mount rainier national park
scenic area of the Cascade Range in west-central Washington, U.S., about 35 miles (56 km) southeast of Tacoma and some 30 miles (48 km) northeast of Mount St. Helens National Volcanic Monument. The park was created in 1899 to preserve Mount Rainier, a dormant volcano 14,410 feet (4,392 metres) high, and the surrounding area. It covers 368 square miles (953 square km).
Learn more about Mount Rainier National Park with a free trial on Britannica.com.