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Native southern hardwood forests and bald cypress, tupelo gum, swamp cottonwood, elm, and tulip poplar trees can be found in the area. [1] [2] Two large tracts have been dedicated as Illinois Nature Preserves and are used for scientific research and education. [1] Common aquatic plants include buttonbush, lotus, duckweed, coontail, and water ...
This 4,160-acre park extends along the shores of Lake Michigan in northern Illinois near Chicago. The park's sand dunes are home to more than 650 species of plants and wildflowers, including ...
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.
The soil of Sand Ridge State Forest is 89% sand, 8% clay, and 3% silt. [5] There are two types of sand, red and yellow. [6] Dunes and swales were created after sand was deposited, but before vegetation could grow, during what is called the Parkland Formation. [1] [2] Dunes range from 6 m (20 ft) up to 30 m (98 ft). [1]
The oak-hickory forests surrounding Coffeen Lake are representative of the native cover found within the Southern Till Plain Natural Division of central and southern Illinois. Soils are of loess and till, rather light and a characteristic "claypan" can be found. Pre-settlement vegetation was a mixture of 60 percent forest to 40 percent prairie ...
The Sand Prairie-Scrub Oak Nature Preserve, formerly called the Mason County State Wildlife Refuge and Recreation Area, is a 1,460 acre (591 ha) State Natural Area and Illinois Nature Preserve located in western Mason County, Illinois. The nearest town is Kilbourne, Illinois and the nearest numbered highway is Illinois Route 97. It contains ...
There is evidence that the Fox River valley near Silver Springs was populated by indigenous people near the end of the last ice age, 10–14,000 years ago. [1] The original 1,250 acres (510 ha) tract of land that became Silver Springs State Fish and Wildlife Area was purchased by the state of Illinois in 1969, and has been open since January of that year.
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