Little Flat Lake   Be the first to submit input for Little Flat Lake. If you have info on Little Flat Lake, Clinton County, Illinois please submit it here to improve this web site.          These outdoors activities are available near Little Flat Lake.   Lakes Near Little Flat Lake: Carlyle Reservoir, Clinton County, 11 miles away   Marinas On or Near Little Flat Lake: Tradewinds Marina, Keyesport, 19 miles away   Hotels Near Little Flat Lake: Super 8 Okawville, Okawville, 5 miles away Best Western U. S. Inn, Nashville, 9 miles away Super 8 Carlyle, Carlyle, 10 miles away Timmermann House Bed & Breakfa, Aviston, 12 miles away Holiday Inn Express HIGHLAND, Highland, 21 miles away   Ski Areas Near Little Flat Lake: Hidden Valley, Missouri, 82 miles away       250 foot drop, 6 lifts, 9 runs