Lake Seneca   Be the first to submit input for Lake Seneca. If you have info on Lake Seneca, Williams County, Ohio please submit it here to improve this web site.          These outdoors activities are available near Lake Seneca.   Lakes Near Lake Seneca: Bird Lake, Hillsdale County, 11 miles away Baw Beese Lake, Branch County, 12 miles away Turner Lake, Hillsdale County, 14 miles away Clear Lake, Steuben County, 15 miles away Loon Lake, Hillsdale County, 15 miles away   Public Lands Near Lake Seneca: Harrison Lake State Park, Ohio, 18 miles away Coldwater Lake State Park, Michigan, 25 miles away Pokagon State Park, Indiana, 27 miles away   Marinas On or Near Lake Seneca: Clear Lake Marina, Fremont, 16 miles away Marsh Brothers, Quincy, 17 miles away   Camp Grounds Near Lake Seneca: Camp Diclair, Montpelier, 3 miles away Funny Farm Campground, Pioneer, 4 miles away Lazy River Resort Camp Ground, Pioneer, 4 miles away   Hotels Near Lake Seneca: Holiday Inn Express Hotel & Suites Bryan-Montpelier, Holiday City, 6 miles away Econo Lodge Montpelier, Montpelier, 6 miles away Ramada Conference Center Bryan/Montpelier, Ohio, Montpelier, 7 miles away The Plaza Motel, Bryan, 12 miles away Days Inn Hillsdale, Hillsdale, 14 miles away