Red Butte Garden-Salt Lake City. Emery Co. Colorado Plateau-Semiarid Benchlands and Canyonlands. E of The Wedge. From Price, UT, take US-191 S for 40.7 miles. Turn right (W) on Green River Cutoff Rd (unpaved). Continue for 1.5 miles, turn right to stay on this road, and continue for another 7.4 miles to collection site. NAD 83., Utah, United States, North America