The 18-hole layout at Flossmoor Country Club is a Herbert Tweedie design from 1900 then modified by Harry Collis before the club hosted the USPGA in 1920 and the US Amateur in 1923. A recent renovation by Ray Hearn has been well received by many commentators.
I just joined the club after careful review of several top clubs in the area last summer and fall. This course is a hidden gem. It is overshadowed by Olympia Fields down the street, but this course is maintained just as well. It also presents some unique challenges like lightening quick greens, and huge bunkers.