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55d - The Pre-Wisconsinan Drift Plains. 55f - The Whitewater Interlobate Area. 56 Southern Michigan/Northern Indiana Drift Plains. 56a - The Lake Country. 56b - The Elkhart Till Plains. 56c - The Middle Tippecanoe Plains. 56d - The Michigan Lake Plain. 57 Huron/Erie Lake Plains. 57a - The Maumee Lake Plains.
Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five inhabited territories. The following is a list of ecoregions in the United States as identified by the World Wide Fund for Nature (WWF). The United States is a megadiverse country with a high level of endemism across a wide variety of ecosystems.
Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology. The classification system has four levels, but only Levels I and III are on this list. Level I divides North America into 15 broad ecoregions; of these, 12 lie partly or wholly within the United States.
99% [1] The Southern Great Lakes lowland forests is a temperate broadleaf and mixed forest ecoregion of North America, as defined by the World Wildlife Fund. Located near the Great Lakes, it lies mostly in the central northeastern United States and extends into southeast central Canada. In modern times, little of it remains intact due to land ...
The Piedmont ecoregion is a United States ecoregion designated by the U.S. Environmental Protection Agency (EPA) and the Commission for Environmental Cooperation (CEC). Considered the non-mountainous portion of the old Appalachian Highlands by physiographers, the northeast-southwest trending Piedmont ecoregion comprises a transitional area ...
Overview. Indiana is bordered on the north by Lake Michigan and the state of Michigan; on the east by Ohio; on the south by Kentucky, with which it shares the Ohio River as a border; and on the west by Illinois. Indiana is one of the Great Lakes states. The northern boundary of the states of Ohio, Indiana, and Illinois was originally defined to ...
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Looking northeast from the top of Mt. Baldy, Indiana Dunes National Park. The dominant feature of the Indiana Dunes is the dunes. The hills and ridges throughout the southern border of Lake Michigan are predominantly sand ridges, created by the movements of the winds and their deposition of the sands. The dunes cover a complex of plant ...