With the fact that Lake Crescent for many millenia flowed to the Elwha and not out through the Lyre ... I'm sure that pre-dams saw at least some sockeye passage into Sutherland. As the remnant lake of the massive landslide that separated the two lakes left the Sutherland piece much smaller, I'm sure it wasn't enormous in more recent times ... but just about every system out here with a lake available carries some sockeye.