Leonard there are a couple of areas open on it, one above and one below Crane. Crane is on hiway 13 north of Galena.
As for your questions, much of it runs through private land and it dumps into the James. Size?? Its susceptible to rainfall and drought, which we haven't had a lot of. While it doesn't look like RR, it is similar in size, below the dams. if you've been downstream from the Whistle bridge below the old dam, it wouldn't be too different in my mind.
It is true that the Trout are wild and that it hasn't been stocked in many years. the fish are genetically tied to the original McCloud strain that was stock by railroad.
Its tough tree lined pocket water, but can be fun fishing, just don't expect a lot of size.