70 ILCS 1585/1
That the land, including all submerged land, known as Grant Park, in the City of Chicago, County of Cook and State of Illinois, bounded on the north by the south line of Randolph street extended in a straight line east from Michigan avenue to the harbor line established by the Secretary of War in Lake Michigan, and bounded on the east by said harbor line, and bounded on the south, east of the right of way, easement and grounds of the Illinois Central Railroad Company, by the south line of the street known as Lake Park Place (formerly known as Park Row) extended in a straight line east from Michigan avenue to said harbor line, and west of said right of way, easement and grounds by the north line of said Lake Park place, and bounded on the west by the east line of Michigan avenue, excepting, however, the right of way, easement and grounds of the Illinois Central Railroad Company extending north and south through said Grant Park as described in an ordinance of the City Council of the City of Chicago, passed October 21, 1895, and published by authority of said Council in 1898, in volume 2 of Special Ordinances of the City of Chicago, at page 657, be and the same is hereby conveyed to the South Park Commissioners, to be held, managed and controlled by said commissioners as other parks now are under the control of said commissioners.
70 ILCS 1585/1