Take a trip to visit a mystic mounded prairie

Looking for something kid-friendly to do on DNR-managed conservation lands? Let their imaginations run wild on 637 acres of grassland mounds at the DNR Mima Mounds Natural Area Preserve (NAP).

Mima Mounds
Camas blooms at the unique Mima Mounds Natural Area Preserve managed by DNR. Photo: DNR/Birdie Davenport

Located next to Capitol State Forest near Olympia, Washington, Mima Mounds NAP protects the mounded Puget prairie landscape. Scientists differ on how the mounds formed; ice age flood deposits, earthquakes — even gophers — are among the formation theories offered.

Mima Mounds
Unique topography is one of the features of DNR’s Mima Mounds Natural Area Preserve south of Olympia. Photo: DNR.

Rising to landmark status
In 1966, the National Park Service designated Mima Mounds a National Natural Landmark for its outstanding condition, illustrative value of a landform, rarity, and value to science and education. The site is one of 17 National Natural Landmarks in Washington state.

The NAP, established in 1976, includes native grasslands, a small Garry oak woodland, savannah (widely spaced oak trees with grass understory), Douglas-fir forest, and habitat for prairie-dependent butterflies and birds.

Unearthing site information and education

Mima Mounds Interpretive Center
Mima Mounds NAP has a lot of informational material for visitors to read while they’re there. DNR photo

Visitors to the site can stop at its interpretive center before stepping onto the trail that skirts around the mounds. The center provides historical and educational information about the site.

For those looking to get a better view of the area, a short set of stairs to the rooftop of the interpretive center provides a look from above.

Discover Pass logoDiscover Pass required
Don’t forget to grab your Discover Pass before heading out on this prairie
adventure. The Discover Pass is required to park a car at Mima Mounds NAP or anywhere in Capitol State Forest. This $30 annual access pass (or $10 day pass) is your ticket to Washington state great outdoors. All proceeds directly support state-managed outdoor recreation.

Adventure on!
Learn more about Mima Mounds NAP and other DNR adventures on our website at www.dnr.wa.gov/recreation.

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