Dennis Lake   Be the first to submit input for Dennis Lake. If you have info on Dennis Lake, Sand Hills, Sheridan County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Dennis Lake.   Lakes Near Dennis Lake: Von Krosigh Lake, Sheridan County, 16 miles away   Hotels Near Dennis Lake: Alliance Hotel and Suites, Alliance, 34 miles away Holiday Inn Express ALLIANCE, Alliance, 34 miles away Patriot Inn, Hemingford, 47 miles away