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Established in 1976 to protect Mima mound landforms and Puget prairie grasslands, The Mima Mounds Natural Area Preserve invites visitors to explore the 637 acres of grassland covered Mima mounds and forest land. As just one of 17 National Natural Landmarks in Washington, the Mima Mounds is a unique place to learn about geology, Mima mound hypotheses, prairie ecology, fire, and Native American historical usage of the mounds.
A ½ mile paved loop and two gravel paths are perfect for guests wishing to see and learn more about this beautiful and rare ecological system. Striking vistas of Mount Rainier and Mount St. Helens are sometimes visible from this location.
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