Now, back to PA, aside from Anthracite, there's also Rausch Creek offroad park, Rock Run Recreation area, and Scrubgrass OHV park, and a new place, The Lannding, that just opened up this year outside of Indiana. Not sure if Rock Run is open during the winter, Scrubgrass does certain weekends here and there (otherwise private, think their monthly event is December 15, so probably rules that out) and The Lannding is normally open on weekends, but pretty sure you can go there anytime if you reach out to make arrangements first. Not a ton of trails out there yet, but they're growing. Pretty sure most of these places (not sure about Scrubgrass tho) do have camping, too.