Paul,
Not familiar with your area up there but here is a link for trails all over the US,
http://www.tellico4x4.com/ride.phpHere is another story of being prepared and still having things go wrong,
http://www.sleeoffroad.com/trails/mahwah_00.htmIf you are looking for trails in your area joining a local club is a good way to go. Often a club can use private land, someone in the club knows someone with lots of land. Went to a military vehicle meet last weekend. One of the members has family with a 100+ acre plot of ground and allowed the club access to camp and run through the muck. The muck was bad enough in one place to swallow 2 Pinzgauers and one Unimog. There was a duece and a half there with a pto winch and 200 ft. of cable, he was very popular.
Did get to go for a ride in a Pinz, that was a cool ride. Here are a couple of pictures,
http://123pichosting.com/images/8466pinz.jpghttp://123pichosting.com/images/5639Mudhole.jpgThe water was deep enough to run into the cab when we rolled though the mud. The down side to all of this is now i want a Pinz.