Lockhaven Country Club is an 18-hole private golf course in Dow, Illinois, built in 1955 and designed by Robert B. Harris. 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. Play is generally limited to members and their guests.
Details like fees and seasons change, so call the course before you head out.