Dimmitt Lake   Be the first to submit input for Dimmitt Lake. If you have info on Dimmitt Lake, Holt County, Nebraska please submit it here to improve this web site.          These outdoors activities are available near Dimmitt Lake.   Hotels Near Dimmitt Lake: Holiday Inn Express O'NEILL, Oneill, 32 miles away Super 8 O Neill NE, Oneill, 32 miles away