Wikidata indicates this creek is located in the Okanogan-Wenatchee National Forest but this is not supported by OpenStreetMap. OpenStreetMap indicates the creek is partially in the Colville National Forest.
Island county shall consist of all of the islands known as Whidbey, Camano, Smith, Deception, Strawberry, Baby, Minor, Kalamut, and Ben Ure and shall extend into the adjacent channels to connect with the boundaries of adjoining counties as defined by statute.