Thornton Lake   Be the first to submit input for Thornton Lake. If you have info on Thornton Lake, Fannin County, Texas please submit it here to improve this web site.          These outdoors activities are available near Thornton Lake.   Public Lands Near Thornton Lake: Bonham State Park, Texas, 15 miles away Eisenhower State Park, Texas, 33 miles away Lake Tawakoni State Park, Texas, 37 miles away   Marinas On or Near Thornton Lake: York Eddie, Leonard, 4 miles away   Hotels Near Thornton Lake: Americas Best Value Inn Bonham, Bonham, 14 miles away Granny Lou's Bed and Breakfast, Bonham, 14 miles away Days Inn Greenville, Greenville, 21 miles away Quality Inn Greenville, Greenville, 21 miles away Econo Lodge Inn & Suites, Greenville, 21 miles away