Duncan Reservoir   Be the first to submit input for Duncan Reservoir. If you have info on Duncan Reservoir, Sheridan County, Wyoming please submit it here to improve this web site.          These outdoors activities are available near Duncan Reservoir.   Public Lands Near Duncan Reservoir: Tongue River Reservoir State Park, Montana, 24 miles away Bighorn National Forest, Wyoming, 24 miles away Rosebud Battlefield State Park, Montana, 31 miles away Little Bighorn Battlefield National Monument, Crow Agency - MT, 64 miles away   Camp Grounds Near Duncan Reservoir: Peter D's RV Park, Sheridan, 9 miles away Bramble Motel and RV Park, Sheridan, 9 miles away Bald Mountain Campground - Bighorn National Forest, Sheridan, 10 miles away   Hotels Near Duncan Reservoir: Quality Inn Sheridan, Sheridan, 7 miles away Days Inn Sheridan, Sheridan, 7 miles away Holiday Inn SHERIDAN-CONVENTION CENTER, Sheridan, 7 miles away Candlewood Suites SHERIDAN, Sheridan, 7 miles away Wingate by Wyndham Sheridan WY, Sheridan, 8 miles away   Whitewater Near Duncan Reservoir: Clear Creek, JohnsonCounty, 17 miles away       Class III-IV(V) - 3.2 miles long (Moiser Picnic to Hydro Station) Clear Creek, JohnsonCounty, 19 miles away       Class IV-V - 4.2 miles long (confluence of Middlr Fork to Moiser Gulch Picnic area) Clear Creek, JohnsonCounty, 19 miles away       Class II-III - 2 miles long (2 miles above to 1/2 mile below Buffalo)