Grassy Lake   Be the first to submit input for Grassy Lake. If you have info on Grassy Lake, St. Charles County, Missouri please submit it here to improve this web site.          These outdoors activities are available near Grassy Lake.   Lakes Near Grassy Lake: Clear Lake, Lincoln County, 6 miles away   Public Lands Near Grassy Lake: Cuivre River State Park, Missouri, 19 miles away Castlewood State Park, Missouri, 20 miles away Route 66 State Park, Missouri, 20 miles away   Marinas On or Near Grassy Lake: Lake St Louis Community Marina, Lake Saint Louis, 5 miles away Two Branch Marina, Saint Charles, 6 miles away Midwest Marine, Saint Louis, 8 miles away Winneberg Marina, Golden Eagle, 12 miles away Allan Joseph Marine, Golden Eagle, 12 miles away   Hotels Near Grassy Lake: Super 8 OFallon MO/St. Louis Area, O'Fallon, 4 miles away Comfort Inn & Suites, O'Fallon, 5 miles away Days Inn Lake Saint Louis, Lake Saint Louis, 5 miles away Days Inn St Peters/St Charles, Saint Peters, 6 miles away Hilton Garden Inn St Louis/O* Fallon, O'Fallon, 7 miles away   Ski Areas Near Grassy Lake: Hidden Valley, Missouri, 19 miles away       250 foot drop, 6 lifts, 9 runs   Golf Courses Near Grassy Lake: The Falls at Turtle Creek Golf Club, O Fallon, 5 miles away Lake Forest Country Club, Lake Saint Louis, 6 miles away