The Department shall exercise all rights, powers and duties vested in the Department of Conservation by "An Act relating to the planning, acquisition and development of outdoor recreation resources and facilities, and authorizing the participation by the State of Illinois its political subdivisions and qualified participants in programs of Federal assistance relating thereto", approved July 6, 1965, as amended, solely as it relates to the powers, rights, duties and obligations heretofore exercised by the Department of Conservation over historically significant properties and interests of the State.
20 ILCS 3405/13