Mount Rainier National Park is a United States National Park located in southeast Pierce County and northeast Lewis County in Washington state. Mount Rainier rises abruptly from the surrounding land with elevations in the park ranging from 1,600 feet (490 m) to over 14,000 feet (4,300 m). I went hiking here 2 years ago. Definitely should be added to the list if you have not been here. Again, you have to visit to really appreciate.