Sockeye do successfully spawn in the Dungeness. When they were pumping redds at the beginning of the springer program, one of the redds was actually sockeye.

Also, many of the systems in WA have riverine sockeye, including the Nooksack, Skagit, Green, Puyallup, Cowlitz, and others. There is the thought that the riverine fish are the base or source of all sockeye. They live in the rivers and are "looking" for glacial retreats that create lakes. Then, they invade the lakes. The lakes are an evolutionary dead end since the whole migration timing/spawn area/fry movement (inlet, outlet, in-lake) are unique; straying is probably not a good idea.