Boelter Reservoir   Be the first to submit input for Boelter Reservoir. If you have info on Boelter Reservoir, Holt County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Boelter Reservoir.   Public Lands Near Boelter Reservoir: Niobrara State Park, Nebraska, 25 miles away Missouri National River & Recreation Area, O'Neill - NE, 69 miles away   Hotels Near Boelter Reservoir: Super 8 O Neill NE, Oneill, 21 miles away Holiday Inn Express O'NEILL, Oneill, 21 miles away