Terms Used In Illinois Compiled Statutes 60 ILCS 1/115-115

• open space: means any space or area of land or water of an area of 50 acres or more, the preservation or the restriction of development or use of which would (i) maintain or enhance the conservation of natural or scenic resources; (ii) protect natural streams or water supply; (iii) promote conservation of soils, wet lands, or shores; (iv) afford or enhance public outdoor recreation opportunities; (v) preserve flora and fauna, geological features, historic sites, or other areas of educational or scientific interest; (vi) enhance the value to the public of abutting or neighboring highways, parks, or other public lands; (vii) implement the plan of development adopted by the planning commission of any municipality or county; or (viii) promote orderly urban or suburban development. See Illinois Compiled Statutes 60 ILCS 1/115-5
• Open space purposes: includes (i) the preservation and maintenance of open land, scenic roadways, and pathways; (ii) the holding of real property described in clause (i), with or without public access, for the education, pleasure, and recreation of the public or for other open space values; (iii) the preservation of portions of that property in their natural condition and the development of other portions of that property; (iv) the management and use of that property in a manner and with restrictions that will leave it unimpaired for the benefit of future generations; and (v) otherwise promoting the conservation of the nature, flora and fauna, natural environment, and natural resources of the township. See Illinois Compiled Statutes 60 ILCS 1/115-5
• Real property: Land, and all immovable fixtures erected on, growing on, or affixed to the land.