Dinsmore Reservoir   Be the first to submit input for Dinsmore Reservoir. If you have info on Dinsmore Reservoir, Washington County, Pennsylvania please submit it here to improve this web site.          These outdoors activities are available near Dinsmore Reservoir.   Public Lands Near Dinsmore Reservoir: Beaver Creek State Park, Ohio, 23 miles away Jefferson Lake State Park, Ohio, 26 miles away McConnell's Mill State Park, Pennsylvania, 35 miles away   Marinas On or Near Dinsmore Reservoir: Groveton Boat Club, Coraopolis, 19 miles away Club Cq Marina, Beaver, 19 miles away Jeffries Landing, Beaver, 20 miles away Rayland Marina, Rayland, 20 miles away River Rose Marina, New Brighton, 20 miles away   Camp Grounds Near Dinsmore Reservoir: Bennett Acres Campground, Burgettstown, 1 miles away Back Country Campgrounds, Colliers, 8 miles away Bellview Campground, Washington County, 9 miles away   Hotels Near Dinsmore Reservoir: Baymont Inn and Suites Weirton, Weirton, 8 miles away Holiday Inn WEIRTON, Weirton, 8 miles away Fairfield Inn & Suites Weirton, Weirton, 8 miles away Hampton Inn Steubenville, Steubenville, 13 miles away Holiday Inn STEUBENVILLE, Steubenville, 13 miles away   Whitewater Near Dinsmore Reservoir: Montour Run, AlleghenyCounty, 14 miles away       Class II-III - 11 miles long (Enlow to Groveton) Little Beaver Creek, ColumbianaCounty, 19 miles away       Class I-II - 8 miles long (Fredricktown to Ohio River)