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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.
Heron Pond – Little Black Slough Nature Preserve (also known simply as Heron Pond) is a parcel of protected wetland property located in Belknap, Illinois, approximately 5 miles (8 km) southwest of Vienna, in Johnson County. It was designated a National Natural Landmark in 1972. [2]
In addition to cultural sites, Illinois contains five wetland areas designated as wetlands of international importance under the Ramsar Convention: [11] Cache River-Cypress Creek Wetlands (including Cypress Creek National Wildlife Refuge) Chiwaukee Prairie Illinois Beach Lake Plain (shared with Wisconsin)
The Wetlands Geodatabase and the Wetlands Mapper, as an Internet discovery portal, provide technological tools that allow the integration of large relational databases with spatial information and map-like displays. The information is made available to an array of federal, state, tribal, and local governments and the public.
The Cache River Wetlands is America's northernmost cypress/tupelo swamp and harbors 91 percent of the state's high quality swamp and wetland communities. It provides habitat for more than 100 threatened and endangered species in Illinois. In 1996, the Cache was designated a Wetland of International Importance under the Ramsar Convention. [4]
Powerton Lake is adjacent to the Illinois River. The low-lying Illinois River's wetland bed is only partly suitable (at best) for agriculture, and large strips of the riverbank have been used for other purposes. The lake is heavily engineered to protect the power plant and other stretches of lake shoreline.
Rush Creek is a 14.9-mile-long (24.0 km) [1] tributary of the Kishwaukee River in northern Illinois. [2] [3] There is another Rush Creek that is a tributary of the Mississippi River in Carroll County. [4]
The National Wetlands Inventory ... NWI started mapping wetlands at a small scale (1:250,000 map which covers an area the size of 128-1:24,000 USGS topographic maps ...