State wildfire resources were deployed to fight blazes in Columbia and Grant counties over the weekend.
The state fire marshal's office said the North Touchet fire, near Dayton in Columbia County, and the Black Rock fire near Wilson Creek in Washington County, both started Saturday and remained out of control Sunday. The state's emergency operations center at Camp Murray is helping coordinate operations against both fires, each of which threatens dozens of homes.
The Northwest Interagency Coordination Center reported seven large active fires burning Monday morning in the region, including a large fire that spread Sunday into Benton county toward the Hanford nuclear reservation.
Hanford once made plutonium for nuclear weapons and is now undergoing a decades-long cleanup.