70 ILCS 810/8
Any forest preserve district shall have power to acquire easements in land, lands in fee simple and grounds within such district for the aforesaid purposes by gift, grant, legacy, purchase or condemnation and to construct, lay out, improve and maintain wells, power plants, comfort stations, shelter houses, paths, driveways, roadways and other improvements and facilities in and through such forest preserves as it shall deem necessary or desirable for the use of such forest preserves by the public. Such forest preserve districts shall also have power to lease not to exceed 40 acres of the lands and grounds acquired by it, for a term of not more than 99 years to veterans' organizations as grounds for convalescing sick veterans and veterans with disabilities , and as a place upon which to construct rehabilitation quarters, or to a county as grounds for a county nursing home or convalescent home. Any such forest preserve district shall also have power to grant licenses, easements and rights-of-way for the construction, operation and maintenance upon, under or across any property of such district of facilities for water, sewage, telephone, telegraph, electric, gas or other public service, subject to such terms and conditions as may be determined by such district.
Whenever the board determines that the public interest will be subserved by vacating any street, roadway, or driveway, or part thereof, located within a forest preserve, it may vacate that street, roadway, or driveway, or part thereof, by an ordinance passed by the affirmative vote of at least 3/4 of all the members of the board.
The determination of the board that the nature and extent of the public use or public interest to be subserved is such as to warrant the vacation of any street, roadway, or driveway, or part thereof, is conclusive, and the passage of such an ordinance is sufficient evidence of that determination, whether so recited in the ordinance or not. The relief to the public from further burden and responsibility of maintaining any street, roadway or driveway, or part thereof, constitutes a public use or public interest authorizing the vacation.
Nothing contained in this Section shall be construed to authorize the board to vacate any street, roadway, or driveway, or part thereof, that is part of any State or county highway.
When property is damaged by the vacation or closing of any street, roadway, or driveway, or part thereof, damage shall be ascertained and paid as provided by law.
Except in cases where the deed, or other instrument dedicating a street, roadway, or driveway, or part thereof, has expressly provided for a specific devolution of the title thereto upon the abandonment or vacation thereof, whenever any street, roadway, or driveway, or part thereof is vacated under or by virtue of any ordinance of any forest preserve district, the title to the land in fee simple included within the street, roadway, or driveway, or part thereof, so vacated vests in the forest preserve district.
The board of any forest preserve district is authorized to sell at fair market price, gravel, sand, earth and any other material obtained from the lands and waters owned by the district.
70 ILCS 810/8