North Grassy Mountain Reservoir   Be the first to submit input for North Grassy Mountain Reservoir. If you have info on North Grassy Mountain Reservoir, Malheur County, Oregon please submit it here to improve this web site.          These outdoors activities are available near North Grassy Mountain Reservoir.   Lakes Near North Grassy Mountain Reservoir: Lake Owyhee, Malheur County, 6 miles away Bully Creek Reservoir, Malheur County, 17 miles away   Public Lands Near North Grassy Mountain Reservoir: Lake Owyhee State Park, Oregon, 6 miles away Ontario State Park, Oregon, 31 miles away Farewell Bend State Park, Oregon, 32 miles away   Camp Grounds Near North Grassy Mountain Reservoir: Lake Owyhee, -blank-, 7 miles away   Hotels Near North Grassy Mountain Reservoir: Rodeway Inn Ontario, Ontario, 31 miles away Holiday Inn Express Hotel & Suites ONTARIO, Ontario, 31 miles away Sleep Inn Ontario, Ontario, 31 miles away Clarion Inn Ontario, Ontario, 31 miles away BEST WESTERN PLUS Inn & Suites, Ontario, 31 miles away