(Big Boy) at Rt.138 Cafe (closed) W. of Mt. Olive, Mt. Olive Township, Macoupin County, IL. IL16/138 (Main St.) W. 1.2 miles from jct with Poplar St. in Mt. Olive to the statue on the N. side of the road. (N39 04.342 W89 45.006) Photo by Jack & June Schmidt 6-20-20.