Big Flat Reservoir   Be the first to submit input for Big Flat Reservoir. If you have info on Big Flat Reservoir, Lincoln County, Nevada please submit it here to improve this web site.          These outdoors activities are available near Big Flat Reservoir.   Public Lands Near Big Flat Reservoir: Cathedral Gorge State Park, Nevada, 8 miles away Spring Valley State Park, Nevada, 17 miles away Kershaw-Ryan State Park, Nevada, 17 miles away Great Basin National Park, Baker - NV, 69 miles away   Camp Grounds Near Big Flat Reservoir: Cathedral Gorge State Park, Panaca, 6 miles away