Man, you guys (and gals) are so lucky out west. In my state of CT, we have ONE small legal spot to ride out ATV's....it's pathetic.
You bet we are.
We routinely go on two and three day expeditions into the back country of the high desert. We generally have two or three 4-WD vehicles and 4 or 5 dirt bikes. We follow these back roads for hundreds of miles, and sometimes don't see another human for two or three days!
We have found old mines, ghost towns, canyons that are not even on topo maps, natural springs, and even ran across an old miner once, with his pack mule in tow. We spent the night around a big ol fire and turns out this guy bailed out of the high tech field and now prospects and wanders around the high country with his mule and dog. It's way cool.
We found a road that goes from the high desert to the 9000 foot level of the Sierras with unreal views and vistas. It a real adventure, and we make the trip often.