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Illinois Level Iii and Level Iv Ecoregions

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Illinois Level Iii and Level Iv Ecoregions ILLINOIS LEVEL III AND LEVEL IV ECOREGIONS 52 53 54 52 54e 53a Galena 52a Waukegan 52b Lake Freeport Rockford 53b Belvidere Woodstock D e Michigan s P l a i n e s R i Mount Carroll 54g v e r Oregon Sycamore 72d Chicago Geneva Wheaton 47 r Dixon ive Morrison k R Roc 54f 54b 72d Yorkville 72f 54d Joliet Moline 56 Rock Island 72f Green River 72f r e iv 72f R x Princeton o Ottawa F 72 La Salle Morris Cambridge Il linoi s River Ka V nka Aledo Hennepin er ke m e R Senachwine i i ll ve 54c io r Lake n R Toulon i v Kankakee 54d 72f e r 54a Galesburg Oquawka 72f Monmouth Pontiac 56 54a 40 72d Watseka Eureka 72 Peoria 54 72 72i Pekin Bloomington Carthage Macomb Paxton Lewistown 72 54d Havana 40 Lincoln Clinton 72b Rushville Urbana Danville 55 V e rm il Monticello io Petersburg n Mount Sterling R . Quincy 72d Virginia Decatur 40 72f Springfield Tuscola er Lake Sangamon Riv Jacksonville Springfield 54 40 72 Winchester Paris Pittsfield Sullivan Taylorville 72f Charleston 72d r 72i e Lake 71 v i Shelbyville Marshall R Shelbyville s i 40 o n i l Carrollton l I Carlinville Toledo 72m 72a E Hardin Hillsboro m 52 Driftless Area b Jerseyville Effingham a r 52a Savanna Section r a s 52b Paleozoic Plateau/Coulee Section R i v e 72a 72f r Newton Robinson 53 Southeastern Wisconsin Till Plains Vandalia 53a Rock River Drift Plain L i t t Greenville l 53b Kettle Moraines e W Edwardsville a b 54 Central Corn Belt Plains a Louisville sh 72a 54a Illinois/Indiana Prairies R Olney i Lawrenceville r 72 ve e 71 54b Chicago Lake Plain r iv R Carlyle h 54c Kankakee Marsh s Lake Salem a St. Louis Carlyle b 72 54d Sand Area 72e a 54e Chiwaukee Prairie Region W Belleville 54f Valparaiso-Wheaton Morainal Complex 72m ia River 72j 54g Rock River Hills ask 39e sk Mount Ka Carmel Fairfield Albion 71 Interior Plateau Nashville 71m Northern Shawnee Hills Waterloo Sk ille t F 71n Southern Shawnee Hills Mount Vernon or k W a 72m ba 39d M s 72 Interior River Valleys and Hills i h ss R 72m is iver 72a Wabash-Ohio Bottomlands si pp 72b Glaciated Wabash Lowlands i McLeansboro Carmi R Pinckneyville Rend iv 72m 72d Upper Mississippi Alluvial Plain er Lake 72l 72e Middle Mississippi Alluvial Plain Benton 72a r 72f River Hills 39g e iv R 72g Southern Ozarkian River Bluffs y 39 d 72e Chester d 72i Western Dissected Illinoian Till Plain u 72e M ig 72j Southern Illinoian Till Plain B 72k Cretaceous Hills Murphysboro Crab Orchard Marion 72l Karstic Northern Ozarkian River Bluffs Shawneetown 72e Lake Harrisburg 72m Wabash River Bluffs and Low Hills Carbondale 71m 72 73 Mississippi Alluvial Plain 72 73a Northern Holocene Meander Belts 71m Elizabethtown PRINCIPAL AUTHORS: Alan J. Woods (Oregon State Jonesboro 71n University), James M. Omernik (U.S. Geological Survey), Level III ecoregion boundary Vienna Charles L. Pederson (Department of Biological Sciences, Golconda Eastern Illinois University), and Brian C. Moran (Indus Level IV ecoregion boundary Corporation). State boundary COLLABORATORS AND CONTRIBUTORS: Candice County boundary 72a Bauer (U.S. Environmental Protection Agency), Bill 72g 71n 39h 72k Ettinger (Illinois Environmental Protection Agency), Gregg 39d Good (Illinois Environmental Protection Agency), Ed Metropolis 72 O Hammer (U.S. Environmental Protection Agency), Mark hio R 72a Joseph (Illinois Environmental Protection Agency), Don Mound City ive Keefer (Illinois State Geological Survey), Laura Keefer 39 72 r 73a 72 (Illinois State Water Survey), Andrew Phillips (Illinois Cairo 73 71 State Geological Survey), Don Pitts (U.S. Department of 74 Agriculture–Natural Resources Conservation Service), 39d 73 74 Mike Retzer (Illinois Natural History Survey), and Roy Smoger (Illinois Environmental Protection Agency)..
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