You can access the public part fairly easily without being a club member, and without breaking any laws. The posted stretch at the mouth is very short, but it does effectively cut off easy access and forces you into doing a lot of work for what amounts to an average stream.
If, going north, you pass the stream, there is a forest road angling up the hill to the right, which curves around to the north ridge above the stream. Google maps calls it "state game lands dirt road". The road comes to a T at the ridgeline. If you park right there, and dive down over the mountain, you hit the stream right at the upper end of the posted stretch, i.e. the bottom end of the state owned land. You can see the signs when you get down there, just stick to the upstream side, and go up from there.
Not that hard going down, but the walk out does suck, it's a real mountain, with lots of rocks and so forth. Wherever you quit, just go straight uphill and hit the road that runs the ridgeline, and walk that back to the car. Not an easy day, but it is all public and legal that way.
It fishes ok. It's kind of a straight shot, not much in the way of meanders and such, and the stream structure is unimpressive. There are a few plunge pools. It's also thick as heck with rhodo, one of the thickest I've fished. And watch out for rattlesnakes on that hillside (not joking). I never catch huge numbers there. As a basemark, I typically get into double digits, but I'm not sure I've topped 20, which is average at best for me on brookie waters. The stream is small but the fish size has been respectable as brookies go.