Been many times, fun place to ride rail buggies. I've also seen 4x4's there but it's a wheel-speed place, not much crawling going on there.
I also heard they where planing on opening back up while mining and logging wasn't going on.
This place has some serious hills for the rail crowd, the kind that have consequences if you come up short!
It's also a dry county so you will need to be descreet if you think you must drink to offroad.