Anyone use this boat launch?

Every season i launch my boat at posession point state park and make the 6 mile trek up to scatchet head. Mostly i catch my fish in the shallows around cultus bay. Well upon inspection ive found a boat launch in cultus bay but i cant find any info on it .this makes me feel as though it may be private which if it is what a bummer. Its inly about a mile paddle to my killing field feom this launch..