"The only Dolly Varden in Washington exists between the Cascades and the Sound in the Snohomish System and northward."

This is not true at least according to what I just learned. There are populations of Dolly Varden in the upper Sol Duc (above the falls), North Fork Quinault(upper) and Grey Wolf rivers. These are only the 'confirmed populations as a real census of some of the areas in the park is nearly impossible. These have been genetically verified by 'fish dude' down in Montana...where is it University of Montana?