depending on the area, I know some who have just driven the truck to it or nearly to it. Things were closed to ATV's at one time, but I think they had to reverse that a while ago? not sure.

One thing too, check in the local town, for a small fee, people are available to pack out with a horse. They will bring the horse, let you use the horse and pick it up when you're done. We've done this several times up in the flattops by rifle. Can't remember the price though, but it was reasonable.