Asimus Reservoir   Be the first to submit input for Asimus Reservoir. If you have info on Asimus Reservoir, Holt County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Asimus Reservoir.   Public Lands Near Asimus Reservoir: Niobrara State Park, Nebraska, 33 miles away   Marinas On or Near Asimus Reservoir: Fort Randall Marina, Pickstown, 19 miles away   Hotels Near Asimus Reservoir: Super 8 O Neill NE, Oneill, 14 miles away Holiday Inn Express O'NEILL, Oneill, 14 miles away