Fig. 1. The Lewis River Watershed and its location in southwest Washington State, USA. The estimated linear extent of streams and rivers accessible to winter steelhead is identified with a thick line. Key disturbance elements include three large dams, and Mt. St. Helens, an active volcano. Landownership as private, public nonfederal, and federal are denoted with shading. Restoration actions completed between 1998 and 2003 and, therefore, included as part of the modeled current conditions are identified with symbols.