Spring Valley Golf Club is an 18-hole public golf course in Okawville, Illinois, built in 1991 and designed by Robert Garard & Gary Hoelcher. It sits in the $$ (moderate) price range for golf in Illinois. The course is open all year. Tee times can be booked 7 days in advance. Guests are welcome.
Details like fees and seasons change, so call the course before you head out.