Witten Dam Reservoir   Be the first to submit input for Witten Dam Reservoir. If you have info on Witten Dam Reservoir, Tripp County, South Dakota please submit it here to improve this web site.          These outdoors activities are available near Witten Dam Reservoir.   Public Lands Near Witten Dam Reservoir: Niobrara National Scenic River, O'Neil - NE, 44 miles away   Hotels Near Witten Dam Reservoir: Holiday Inn Express Hotel & Suites WINNER, Winner, 16 miles away Quality Inn Rosebud Casino, Mission, 41 miles away Trade Winds Lodge, Valentine, 43 miles away Dunes Lodge and Suites, Valentine, 43 miles away Comfort Inn Valentine, Valentine, 44 miles away