Longs Lake   Be the first to submit input for Longs Lake. If you have info on Longs Lake, Cass County, Illinois please submit it here to improve this web site.          These outdoors activities are available near Longs Lake.   Lakes Near Longs Lake: Matanzas Lake, Mason County, 11 miles away Lake Petersburg, Menard County, 19 miles away   Public Lands Near Longs Lake: Anderson Lake State Park, Illinois, 10 miles away Spring Lake State Park, Illinois, 30 miles away Powerton Lake State Park, Illinois, 40 miles away   Marinas On or Near Longs Lake: Tall Timbers Marina, Havana, 15 miles away   Hotels Near Longs Lake: Super 8 Jacksonville, Jacksonville, 19 miles away Riverbank Lodge, Petersburg, 19 miles away Hampton Inn Jacksonville, Jacksonville, 19 miles away Country Hearth Inn Jacksonville, Jacksonville, 19 miles away Holiday Inn Express Hotel & Suites JACKSONVILLE, Jacksonville, 20 miles away   Ski Areas Near Longs Lake: Ski Snowstar Winter Sports Park, Illinois, 85 miles away       262 foot drop, 7 lifts, 15 runs Hidden Valley, Missouri, 87 miles away       250 foot drop, 6 lifts, 9 runs   Whitewater Near Longs Lake: Sangamon, MenardCounty, 19 miles away       Class III - 0.1 miles long (Playspot in Petersburg)