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The Illinois Basin is a Paleozoic depositional and structural basin in the United States, centered in and underlying most of the state of Illinois, and extending into southwestern Indiana and western Kentucky. The basin is elongate, extending approximately 400 miles (640 km) northwest-southeast, and 200 miles (320 km) southwest-northeast.
These basins, termed the Illinois Basin and Michigan Basin, allowed for extensive deposition of sedimentary rock during the Palaeozoic Era. [2] The Illinois Basin is a northwest–southeast asymmetrical structural basin that is filled with more than 4000 meters of Paleozoic sedimentary rocks. The basin covers most of Illinois, and extends into ...
Great Basin National Park: Nevada: 1986 77,180.00 312.3364 Great Sand Dunes National Park: ... Pullman National Historical Park: Illinois: 203.48 acres (0.8235 km 2)
Wind Cave National Park in South Dakota. Wrangell-St. Elias National Park in Alaska. Yellowstone National Park in Idaho, Montana and Wyoming. Yosemite National Park in California. Zion National ...
1938 poster promoting Yellowstone National Park, the first national park in the world Interactive map (possibly incomplete) of the National Parks of the United States. The United States has 63 national parks , which are congressionally designated protected areas operated by the National Park Service , an agency of the Department of the Interior ...
Garden of the Gods in the Shawnee National Forest. The Shawnee Hills are a region within the larger Interior Low Plateaus physiographic province located in southern Illinois, southern Indiana, and western Kentucky. [1] In Illinois it rests mainly in an east–west arc roughly following the outline of the southern end of the Illinois Basin.
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 ...
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