Diebert-Hortsman Lake   Be the first to submit input for Diebert-Hortsman Lake. If you have info on Diebert-Hortsman Lake, Clinton County, Illinois please submit it here to improve this web site.          These outdoors activities are available near Diebert-Hortsman Lake.   Camp Grounds Near Diebert-Hortsman Lake: Mick's Lake, Highland, 8 miles away   Hotels Near Diebert-Hortsman Lake: Timmermann House Bed & Breakfa, Aviston, 4 miles away Holiday Inn Express HIGHLAND, Highland, 7 miles away La Quinta Inn & Suites O'Fallon/Mascoutah, Mascoutah, 11 miles away Super 8 Okawville, Okawville, 14 miles away Settle Inn & Suites O'Fallon I, O'Fallon, 15 miles away   Ski Areas Near Diebert-Hortsman Lake: Hidden Valley, Missouri, 69 miles away       250 foot drop, 6 lifts, 9 runs