Thompson Canyon, Polar Mesa
There is a lot to see on this amazing high mountain trail that features mine ruins and and gives you a break from the summer heat in Moab. There are a few side roads to explore and unlicensed vehicles are allowed. Be courteous to mountain bikers on the Kokopelli Bike Trail.
From Highway 191 north of Moab, take Highway 128 along the Colorado River 20.2 miles. Turn right on well-marked Onion Creek Road soon after mile marker 20. Follow Onion Creek Road east 9.5 miles and turn right on good road.