The Duwamish Hill Preserve is a 10.5-acre parcel of historical, cultural and ecological significant land in Tukwila. In 2001, Forterra, the City of Tukwila and local citizen group Friends of the Hill formed a partnership to work towards the preservation of this land slated for industrial development. The parcel was successfully acquired in 2004 by Forterra (then Cascade Land Conservancy) and the City of Tukwila. After many years of hard work by volunteers, the Duwamish Hill Preserve was officially opened to the public in 2010.
The Preserve now includes an outdoor classroom area, the Cultural Garden, an enhanced trail system and continued restoration opportunities for volunteers. The Duwamish Hill Preserve is managed as a public open space preserve dedicated to the conservation and enhancement of its rich Native American cultural history, ecological importance and community impact.