Hanson Reservoir   Be the first to submit input for Hanson Reservoir. If you have info on Hanson Reservoir, Niobrara County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Hanson Reservoir.   Public Lands Near Hanson Reservoir: Agate Fossil Beds National Monument, Harrison - NE, 58 miles away Jewel Cave National Monument, Custer - SD, 63 miles away Devils Tower National Monument, Devils Tower - WY, 64 miles away   Hotels Near Hanson Reservoir: Auto Inn Motel, Newcastle, 25 miles away Fountain Inn, Newcastle, 28 miles away Americas Best Value Inn, Lusk, 36 miles away Best Western Pioneer, Lusk, 36 miles away Rodeway Inn Sundance Mountain Inn, Sundance, 47 miles away