Chamna Natural Preserve

Chamna Natural Preserve is a 276-acre natural preserve in Richland, Washington, with more than 11 miles of trails through shrub-steppe, riparian, and wetland habitat. It is part of broader Tri-Cities recreation, education, and conservation efforts on the Lower Yakima River, with stewardship and native plant restoration supporting the preserve’s open space and trail connections, including the Duportail Trail.