Coble Reservoir   Be the first to submit input for Coble Reservoir. If you have info on Coble Reservoir, Sand Hills, Cherry County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Coble Reservoir.   Public Lands Near Coble Reservoir: Nebraska National Forests and Grasslands, Nebraska, 24 miles away Niobrara National Scenic River, O'Neil - NE, 65 miles away