Yacolt Burn State Forest is a 90,000-acre state forest in southern Washington in the foothills of the Cascade Range. Managed by the Washington State Department of Natural Resources, it serves as both a protected landscape and a working forest used for timber harvesting and recreation. Its name comes from the Yacolt Burn, the wildfires that broke out in 1902 and permanently shaped this part of the state. That legacy continues in the area known as Abby Road, where long-term ecological research is conducted. The forest is also a major recreation destination, with trails for hiking, mountain biking, horseback riding, off-road vehicles, target shooting, and several maintained campgrounds.