90° 89° 88° 87° 86° 85° 84° 83° 82°
48° CANADA Level III and IV Ecoregions of Michigan June, 2010
MINNESOTA Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental 48° resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of 50d ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and non-governmental organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic LAKE SUPERIOR phenomena, including geology, physiography, vegetation, climate, soils, land use, wildlife, and hydrology. The relative importance of each characteristic varies from one ecological region to another regardless of the hierarchical level. The Ecoregions of Michigan map was compiled at a scale of 1:250,000, as part of the US EPA framework of ecological regions. Although there have been differences in conceptual approaches and mapping methodologies used by the USDA–Forest Service, USDA–NRCS, and US EPA to develop the most common ecoregion-type frameworks, collaboration on refinement of these frameworks is a step toward attaining consensus and consistency in ecoregion frameworks for the entire nation. Copper Harbor . Comments regarding this map should be addressed to James Omernik, U.S. Geological Survey, 200 SW 35th Street, Corvallis, OR 97333, (541) 754-4458, [email protected]; or Sandy Bryce, Dynamac Corp., c/o US EPA, 200 SW 50d 35th Street, Corvallis, OR 97333, (541) 754-4788, [email protected]. 47° Scale 1:1,000,000 NAD 1983 Albers Equal Area Conic . Houghton 60 30 0 60 Kilometers
Torch Lake 50d 60 30 0 60 Miles 47°
Ontonogan . Level III boundary Level IV boundary Grand CANADA 50d Marais. International boundary 50u State boundary Onton 50a Michigamme County boundary Presque 50x agon . 50z 50w Sault Lake . 50a River Michigamme. Marquette Ste. 50d Marie Gogebic Lake Michigamme 50v River Isle River . Tahquamenon Munising . Newberry 50z 50z Escanaba River River 50aa 46° 50y Stalwart . Michigamme 50i Paint Reservoir WISCONSIN River 50aa 50j . River Iron Manistique River . 50aa Manistique St.. 46° 50l 50aa Ignace 50ac 50k 50ab
50 Northern Lakes and Forests Escanaba . Cheboygan. 50ac 50a Lake Superior Clay Plain 50ac Black 50ab 50ac 50d Superior Mineral Ranges Pigeon . Indian 50i Northern Wisconsin Highlands Lakes Country River River Charlevoix . River .Rockport 50j Brule and Paint River Drumlins
50ad Alpena 45° 50k Wisconsin/Michigan Pine Barrens . Grand Atlanta Traverse Gaylord . 50ac 50l Menominee Drumlins and Ground Moraine .Menominee 51m Bay .
50u Keweenaw-Baraga Moraines 45° 50v Winegar Dead Ice Moraine Green Bay 51m Traverse. City Au Sable 50w Michigamme Highland L A K E H U R O N 50ae
50x Grand Marais Lakeshore Betsie 51n River River Grayling River . 50y Seney-Tahquamenon Sand Plain
50z Rudyard Clay Plain Hougleton . Lake Tawas City Cadillac 50aa Menominee-Drummond Lakeshore Manistee . Little 50ah 44° Manistee 50ab Cheboygan Lake Plain . Manistee
River 50ac Onaway Moraines 50af Marquette 50ag River 50ad Vanderbilt Moraines Pere River 44° Saginaw Bay 50ae Mio Plateau Cass City Black Big . 57e . Rapids Tittabawassee . 50af Cadillac Hummocky Moraines Midland. Bay City
River
River 50ag Newaygo Barrens River . River River Sandusky .Saginaw 50ah Tawas Lake Plain Saginaw Cass White
51 North Central Hardwood Forests Muskegon River
Muskegon 51m Manistee-Leelanau Shore LAKE MICHIGAN . 43° Port . 51n Platte River Outwash Flint. Flint Huron
Grand River . . Grand 55 Eastern Corn Belt Plains Milwaukee 56d Rapids Shiawassee 56g River 43° 55a Clayey High Lime Till Plains CANADA Lansing . . Z Pontiac Holland . 56 Southern Michigan/Northern Indiana Drift Plains
56b Battle Creek/Elkhart Outwash Plain 57a 56f LAKE 56h Kalamazoo S T. C L A I R 56d Michigan Lake Plain 56h . Detroit
Huron Ann 56f Lake Michigan Moraines ILLINOIS Arbor . River Battle. Creek .Jackson 57b 56g Lansing Loamy Plain . 55a Kalamazoo River 56b 57b 42° 56h Interlobate Dead Ice Moraines Paw Paw River River .Benton 56h Harbor Raisin 57 Huron/Erie Lake Plains 57b L A K E E R I E Joseph 57a Maumee Lake Plain River 42°
Saint Sturgis 57b Oak Openings Chicago . . . Niles Toledo. OHIO 57e Saginaw Lake Plain INDIANA
90° 89° 88° 87° 86° 85° 84° 83°