If you follow Tunnel Rd down from Coburn, it ends at a footbridge over Penns Creek.
There is a small parking area there, which is on private property. The owners generously allow fishermen to park there. But that could end at any time.
Don't stay overnight there. Also, if this small parking lot is full, just go somewhere else. Do not park on the grass lawns.
This access is precarious.
It's better to go to Poe Paddy, where you know you are on public land. That is also a very nice place to camp.