Thomas Cavender Reservoir   Be the first to submit input for Thomas Cavender Reservoir. If you have info on Thomas Cavender Reservoir, Blue Mountains, Grant County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Thomas Cavender Reservoir.   Public Lands Near Thomas Cavender Reservoir: John Day Fossil Beds National Monument, Kimberly - OR, 12 miles away   Camp Grounds Near Thomas Cavender Reservoir: Elkhorn Tavern and RV Park, Monument, 6 miles away   Hotels Near Thomas Cavender Reservoir: Best Western John Day Inn, John Day, 38 miles away Comfort Inn & Suites, Hermiston, 48 miles away   Hiking Trails Near Thomas Cavender Reservoir: Minetop Trail, Morrow County, 8 miles away        6 hiking miles, 931 feet elevation difference Madison Butte Trail, Morrow County, 13 miles away       3 hiking miles, 894 feet elevation difference Knob Trail, Grant County, 14 miles away       4.3 hiking miles, 1756 feet elevation difference