Hidden Reservoir   Be the first to submit input for Hidden Reservoir. If you have info on Hidden Reservoir, Washakie County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Hidden Reservoir.   Public Lands Near Hidden Reservoir: Hot Springs State Park, Wyoming, 35 miles away Bighorn Canyon National Recreation Area, Fort Smith - MT, 60 miles away   Hotels Near Hidden Reservoir: Comfort Inn Worland, Worland, 15 miles away Super 8 Worland, Worland, 15 miles away Days Inn Worland, Worland, 17 miles away Budget Host Wheels Motel, Greybull, 31 miles away BEST WESTERN PLUS Plaza Hotel, Thermopolis, 40 miles away