We enjoy ATV rides, but there are not any groomed trails here in Alaska I am aware of. Our machines are mostly used for hunting and berry picking and rarely go over 15 mph. Most of the time the trails are so bad we can't do 10 mph with out jarring our teeth loose.
That describes many of the 'groomed' trails here in so. Idaho. They remove the rocks and logs that nothing can get over and call it a trail. Some get pretty hairy.