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  2. List of ecoregions in the United States (EPA) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    Three level I areas were not subdivided for level 2. [2] Level III subdivides the continent into 182 smaller ecoregions; of these, 104 lie partly or wholly with the United States. [1] [3] Level IV is a further subdivision of Level III ecoregions. Level IV mapping is still underway but is complete across most of the United States.

  3. Category:Ecoregions of Nebraska - Wikipedia

    en.wikipedia.org/.../Category:Ecoregions_of_Nebraska

    Pages in category "Ecoregions of Nebraska" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. C. Corn Belt; H.

  4. Western Corn Belt Plains - Wikipedia

    en.wikipedia.org/wiki/Western_Corn_Belt_Plains

    The Western Corn Belt Plains is a Level III ecoregion designated by the Environmental Protection Agency (EPA) in seven U.S. states, though predominantly in Iowa. It has been subdivided into fifteen Level IV ecoregions. [1] [2]

  5. List of ecoregions in North America (CEC) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in...

    "Level I" divides North America into 15 broad ecoregions. "Level II" subdivides the continent into 52 smaller ecoregions. "Level III" subdivides those regions again into 182 ecoregions. [1] [2] "Level IV" is a further subdivision of Level III ecoregions. Level IV mapping is still underway but is complete across most of the United States.

  6. Central Great Plains (ecoregion) - Wikipedia

    en.wikipedia.org/wiki/Central_Great_Plains_(eco...

    This large grassland area with very few trees runs north–south from central Nebraska through central Kansas and western Oklahoma to north-central Texas, covering 109,000 sq mi (282,000 km 2).

  7. List of ecoregions in the United States (WWF) - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_the...

    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.

  8. Category:Ecoregions of the United States by state - Wikipedia

    en.wikipedia.org/wiki/Category:Ecoregions_of_the...

    Ecoregions of Nebraska (5 P) O. Ecoregions of Oregon (14 P) S. Ecoregions of South Dakota (4 P) W. Ecoregions of Wisconsin (5 P) This page was last edited on 26 ...

  9. Category:Ecoregions of the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Ecoregions_of_the...

    S. Sagebrush steppe; Sierra Madre Occidental pine–oak forests; Sierra Madre Oriental pine–oak forests; Snake River Plain (ecoregion) Snake–Columbia shrub steppe