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Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
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] The National Natural Landmarks Program is administered by the National Park Service, a branch of the Department of the Interior. The ...
Illinois Nature Preserve sign at Nachusa Grasslands. The Illinois Nature Preserves Commission (INPC) is a state organization, established by the Illinois Natural Areas Preservation Act, to identify, protect, steward, and defend high quality natural areas in the state of Illinois. [1] [2] Its mission is: [1]
Illinois' southeastern and southern boundary is along the Wabash River and the Ohio River, whereas its northern boundary and much of its eastern boundary are straight survey (longitudinal and latitudinal) lines. Illinois has a maximum north–south distance of 390 miles (630 km) and 210 miles (340 km) east-west.
Mitchell's Grove Nature Preserve is a 184 acres (74 ha) nature preserve and State Natural Area [2] located in LaSalle County, Illinois, situated between Tomahawk Creek and the Little Vermillion River north of their confluence. It is composed of diverse terrain with over 300 plant species present. [3]
Goose Lake, Des Plaines River, Kankakee River, Illinois River: Harry "Babe" Woodyard State Natural Area: Vermilion: 1,104 4.47 ? Little Vermilion River (Wabash River tributary) Illinois Caverns State Natural Area: Monroe: 120 0.49 1985: None: 9.6 km of the park are passages underground. Mitchell's Grove Nature Preserve: LaSalle: 184 0.74 1997
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The Illinois List of Endangered and Threatened Species is reviewed about every five years by the Illinois Endangered Species Protection Board (ESPB). [1] To date it has evaluated only plants and animals of the US state of Illinois, not fungi, algae, or other forms of life; species that occur in Illinois which are listed as endangered or threatened by the U.S. federal government under the ...