Sedgwick Reservoir   Be the first to submit input for Sedgwick Reservoir. If you have info on Sedgwick Reservoir, Niobrara County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Sedgwick Reservoir.   Lakes Near Sedgwick Reservoir: L A K Reservoir, Weston County, 20 miles away   Public Lands Near Sedgwick Reservoir: Jewel Cave National Monument, Custer - SD, 45 miles away Agate Fossil Beds National Monument, Harrison - NE, 46 miles away Wind Cave National Park, Hot Springs - SD, 51 miles away   Hotels Near Sedgwick Reservoir: Auto Inn Motel, Newcastle, 20 miles away Fountain Inn, Newcastle, 20 miles away Americas Best Value Inn, Lusk, 39 miles away Best Western Pioneer, Lusk, 39 miles away Legion Lake Lodge, Custer, 40 miles away