The following described real estate is added to and made a part of Pere Marquette State Park, to wit:
All that area in Sections 5 and 8, T. 6N, R. 12 W. of the 3rd P.M., Jersey County, Illinois, bequeathed to the State of Illinois by the late Harry H. Ferguson of Alton, Illinois, comprising 860 acres, more or less, and once known as Glen Cliffe Farm.
20 ILCS 840/4