Mounds upon mounds, most six-to-eight-feet tall, spread uniformly across hundreds of prairie acres, creating an otherworldly effect whose origins are yet understood. Follow the interpretive trail and ponder the mysterious landscape for yourself.
The wide mounds dot the landscape in an almost perfect, repetitive pattern akin to the reverse divots of a golf-ball. A mound-shaped observation deck allows you to gaze above the mounds to get a better feel for the magnitude and scope of the mounds as they extend across numerous acres. Theories abound to explain these unique mounds ranging from giant gophers, to alien sightings, to volcanic-inducing vibrations and harmonics that 'sifted' various soils and minerals to the surface of the land.
Rare mounded grassland prairie rings with spring songs of Western Meadowlarks, Western Bluebirds, Vesper and Savannah Sparrows. Summer showcases camas wildflowers, butterflies. Raptors stay year-round. Audubon Important Bird Area.
See Southwest Loop of the Great Washington State Birding Trail.This location is included on the National Geographic Central Cascades Mapguide.
