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  2. Forest Preserve District of Cook County - Wikipedia

    en.wikipedia.org/wiki/Forest_Preserve_District...

    [4] [5] The Forest Preserve District Association was formed in 1911 after a new state law was adopted in 1909; however, the courts declared the law unconstitutional in 1911. In 1913, Illinois adopted the Cook County Forest Preserve District Act [3] that was signed by the governor and survived legal challenge. The 1913 law allowed a county board:

  3. Chicago Portage National Historic Site - Wikipedia

    en.wikipedia.org/wiki/Chicago_Portage_National...

    The site, which was designated January 3, 1952 as an affiliated area of the National Park Service, is owned and administered by the Forest Preserve District of Cook County. Visitor access is via Harlem Avenue, just north of Interstate 55. The site contains the parking area, a memorial statue, interpretive signs, and trails.

  4. List of protected areas of Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_protected_areas_of...

    One of the largest systems is the Forest Preserve District of Cook County, which includes Brookfield Zoo and the Chicago Botanic Garden as well as 70,000 acres (280 km 2) of open land, or 11.6 percent of Cook County's land area. Under Illinois law, counties may set up a conservation land holding district, after approval by county voters.

  5. Palos Forest Preserves - Wikipedia

    en.wikipedia.org/wiki/Palos_Forest_Preserves

    The Palos Forest Preserves are 15,000 acres of forest preserves in the Forest Preserve District of Cook County, located principally in Palos Township, Illinois. [ 1 ] During the 1930s, the area of the Palos Preserves south of Archer was known as the Argonne Forest .

  6. North Creek Woods - Wikipedia

    en.wikipedia.org/wiki/North_Creek_Woods

    Forest Preserve District of Cook County website 41°32′38″N 87°33′43″W  /  41.54389°N 87.56194°W  / 41.54389; -87 This Cook County, Illinois location article is a stub .

  7. List of National Natural Landmarks in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_National_Natural...

    The first designation, Forest of the Wabash, was made in 1965, while the most recent designation, Markham Prairie, was made in 1987. [1] Natural Landmarks in Illinois range from 53 to 6,500 acres (21.4 to 2,630.5 ha; 0.1 to 10.2 sq mi) in size. Owners include private individuals or organizations, and several county, state and federal agencies. [2]

  8. Ned Brown Forest Preserve - Wikipedia

    en.wikipedia.org/wiki/Ned_Brown_Forest_Preserve

    Busse Woods, the heart of the forest preserve, is a mature Great Lakes hardwood forest. A 440-acre (180 ha) segment of the woods, the Busse Forest Nature Preserve, is listed as a national natural landmark [2] as a surviving fragment of flatwoods, a type of damp-ground forest formerly typical of extremely level patches of ground in the Great Lakes region.

  9. North Branch Trail - Wikipedia

    en.wikipedia.org/wiki/North_Branch_Trail

    The North Branch Trail is a Class I bicycle trail located in northeastern Cook County, Illinois. The trail starts at the western part of Gompers Park in Chicago ( 41°59′51.4″N 87°46′2.9″W  /  41.997611°N 87.767472°W  / 41.997611; -87.767472 ), and from there it continues north approximately 22 miles (35 km) to Glencoe ( 42 ...