Mount Rainier National Park is a United States National Park located in southeast Pierce County and northeast Lewis County in Washington state. It was established on March 2, 1899 as the fifth national park in the United States. The park encompasses 236,381 acres (369.35 sq mi; 956.60 km²) including all of Mount Rainier, a 14,411-foot (4,392 m) stratovolcano. The mountain rises abruptly from the surrounding land with elevations in the park ranging from 1,600 feet to over 14,000 feet (490 - 4,300 m). The highest point in the Cascade Range, around it are valleys, waterfalls, subalpine meadows, old-growth forest and more than 25 glaciers.