Gaskill Reservoir   Be the first to submit input for Gaskill Reservoir. If you have info on Gaskill Reservoir, Niobrara County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Gaskill Reservoir.   Public Lands Near Gaskill Reservoir: Agate Fossil Beds National Monument, Harrison - NE, 61 miles away Devils Tower National Monument, Devils Tower - WY, 62 miles away Jewel Cave National Monument, Custer - SD, 65 miles away   Hotels Near Gaskill Reservoir: Auto Inn Motel, Newcastle, 26 miles away Fountain Inn, Newcastle, 29 miles away Americas Best Value Inn, Lusk, 37 miles away Best Western Pioneer, Lusk, 38 miles away Rodeway Inn Sundance Mountain Inn, Sundance, 46 miles away