Long Prairie Reservoir   Be the first to submit input for Long Prairie Reservoir. If you have info on Long Prairie Reservoir, Blue Mountains, Wheeler County, Oregon please submit it here to improve this web site.          These outdoors activities are available near Long Prairie Reservoir.   Public Lands Near Long Prairie Reservoir: Cline Falls State Park, Oregon, 35 miles away John Day Fossil Beds National Monument, Kimberly - OR, 23 miles away   Hotels Near Long Prairie Reservoir: Rodeway Inn Boardman, Boardman, 42 miles away River Lodge and Grill, Boardman, 43 miles away   Hiking Trails Near Long Prairie Reservoir: Wall Creek Trail, Grant County, 11 miles away       2.8 hiking miles, 552 feet elevation difference Knob Trail, Grant County, 15 miles away       4.3 hiking miles, 1756 feet elevation difference   Whitewater Near Long Prairie Reservoir: John Day River, Wheeler/ Jefferson/ WascoCounty, 16 miles away       Class II - 47 miles long (Service Creek to Clarno)