God made this place specifically for riding!! Huge, steep hills, large, small, medium jumps, trails, perfect terrain. Take I-70 take Hanksville exit (just west of Greenriver) go south about 40 miles to Hanksville, turn right @ intersection (only one in town) go 13 mi to grey hilled riding area, unload and tear it up. Great riding for all skill levels, just be careful of deep washes, and drop-offs (always check other side before just blasting over anything). No facilities of any kind so bring your own food and water.