Rex Reservoir   Be the first to submit input for Rex Reservoir. If you have info on Rex Reservoir, Blue Mountains, Grant County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Rex Reservoir.   Public Lands Near Rex Reservoir: John Day Fossil Beds National Monument, Kimberly - OR, 51 miles away   Camp Grounds Near Rex Reservoir: Ray Cole Campground, Grant County, 5 miles away   Hotels Near Rex Reservoir: Best Western John Day Inn, John Day, 12 miles away Days Inn Burns, Burns, 30 miles away Americas Best Inns-Burns, Burns, 31 miles away Best Western Rory & Ryan Inns, Hines, 31 miles away   Hiking Trails Near Rex Reservoir: Fawn Spring Trail, Grant County, 6 miles away       0.7 hiking miles, 112 feet elevation difference Berry Creek Trail, Grant County, 7 miles away        9.6 hiking miles, 1684 feet elevation difference East Fork Canyon Trail, Grant County, 9 miles away        11.6 hiking miles, 1161 feet elevation difference