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The Illinois state park system began in 1908 with what is now Fort Massac State Park, in the U.S. state of Illinois, becoming the first park in a system encompassing over 60 parks and about the same number of recreational and wildlife areas.
T. J. (Tomar Jacob) Hileman (1882–1945) was an American photographer born in Manor Township, Armstrong County, Pennsylvania, [1] who is renowned for his photos of Glacier Park in Montana, and Blackfoot people. After working a while in Chicago and graduating from Effingham School of Photography there, he moved to Colorado and began to take ...
The earliest Carboniferous rocks sit conformably on top of the youngest Devonian in Illinois; Carboniferous rocks in the state are areally extensive, regionally very well-exposed, and form a large percentage of the state's bedrock. Illinois remained marine for much of the Carboniferous, with limestones making up most of the rock deposited ...
The earliest formation of Lake Chicago occurred when the Michigan Lobe of the glacier retreated northward into the basin of modern Lake Michigan, ca 13,000 years ago. [3] The edge of the retreating glacier formed moraines, the Park Moraine in present-day Illinois and the Lake Borders Moraine in Indiana and Michigan. [4]
The Illinoian Stage is the name used by Quaternary geologists in North America to designate the Penultimate Glacial Period c.191,000 to c.130,000 years ago, during the late Middle Pleistocene (Chibanian), when sediments comprising the Illinoian Glacial Lobe were deposited.
Weldon Springs State Park is an Illinois state park; the primary 550-acre (220 ha) area is located near Clinton, Illinois, while a secondary area is located near Monticello, Illinois. The former centers on Salt Creek and the impoundment of a tributary, Weldon Springs, to form Weldon Spring Lake , a reservoir .
Photo credit: Joe Ravi A tiger swallowtail butterfly (Papilio glaucus) in Shawnee National Forest. Photo credit: Daniel Schwen A mill belonging to the grain company Bunge Lauhoff in downtown Danville. The facility was built in 1947. Photo credit: Daniel Schwen Shore of Lake Michigan at Illinois Beach State Park in Lake County.
Illinois Caverns is a state natural area in the New Design Precinct of Monroe County, Illinois. It features Illinois Caverns which is alternatively known as Mammoth Cave of Illinois (also Burksville Cave, Egyptian Cave, Eckert Cave). Illinois Caverns is the second-largest cave in Illinois and has more than 9.6 km of passages. [1]