765 ILCS 120/2
Any owner of real property in this State may convey a conservation right in such real property to the United States or any agency of the federal government an agency of the State, to a unit of local government, or to a not-for-profit corporation or trust whose primary purposes include the conservation of land, natural areas, open space or water areas, or the preservation of native plants or animals, or biotic communities, or geographic formations of scientific, aesthetic, or educational interest, or the preservation of buildings, structures or sites of historical, architectural, archeological or cultural significance.
No conveyance of such conservation rights shall take effect until such conveyance is accepted by the grantee. Acceptance of such conservation rights may be conditioned upon any requirements which are deemed proper by the grantee. Such requirements may include the payment of funds by the grantor to provide for the management of such conservation rights.
A unit of local government, including, but not limited to, a county, township, forest preserve district, conservation district, park district, or municipality, has the authority to grant a conservation right on property that it owns to another unit of government or to any not-for-profit corporation or trust described in this Section.
765 ILCS 120/2