Vonasek Reservoir   Be the first to submit input for Vonasek Reservoir. If you have info on Vonasek Reservoir, Knox County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Vonasek Reservoir.   Public Lands Near Vonasek Reservoir: Niobrara State Park, Nebraska, 12 miles away Missouri National River & Recreation Area, O'Neill - NE, 58 miles away   Campgrounds Near Vonasek Reservoir: Wildwood Acres Campground, Knox County, 13 miles away   Hotels Near Vonasek Reservoir: Super 8 O Neill NE, Oneill, 32 miles away Holiday Inn Express O'NEILL, Oneill, 32 miles away