Looks like a fun time. Bohemia is not far from my house, I have had the pleasure of exploring that area a few times. Every time I have been up there was with people who are friends with the miners. There is still a large number of active claims up there and many of the trails leading to them are tiny donkey trails clinging to the side of eroding rocky hills. Passable with a decent 4x4, and maintained by either miners, their 4x4 friends or the South Valley 4x4 Group. You can literally spend days up there exploring, and if you have keys/combinations to the gates like some of my friends do, you can do even more exploring. Unfortunately the Annual SVG Invitational was cancelled this year due to fire danger. Champion creek is also great in the snow. I've seen 10'+ drifts, on a road about 10' wide.