Cox Reservoir   Be the first to submit input for Cox Reservoir. If you have info on Cox Reservoir, Crook County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Cox Reservoir.   Public Lands Near Cox Reservoir: Keyhole State Park, Wyoming, 15 miles away Devils Tower National Monument, Devils Tower - WY, 23 miles away   Marinas On or Near Cox Reservoir: Keyhole Marina & Motel, Moorcroft, 19 miles away   Camp Grounds Near Cox Reservoir: Rangeland Court Motel and RV Park, Moorcroft, 6 miles away   Hotels Near Cox Reservoir: Settle Inn & Suites Gillette N, Gillette, 29 miles away Econo Lodge Gillette, Gillette, 31 miles away Days Inn Gillette, Gillette, 31 miles away Howard Johnson Inn Gillette, Gillette, 31 miles away Holiday Inn Express Hotel & Suites GILLETTE, Gillette, 31 miles away