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  2. Cascades (ecoregion) - Wikipedia

    en.wikipedia.org/wiki/Cascades_(ecoregion)

    The Southern Cascades ecoregion is lower in elevation and less rugged than the surrounding regions and is characterized by gently sloping mountains and broad valleys. Elevation varies from 1,400 to 5,300 feet (430 to 1,620 m). The climate is drier than other parts of the Cascades, and the vegetation reflects the long summer drought.

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

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

    In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology, physiography, vegetation, climate, soils, land use, wildlife distributions, and hydrology.

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

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

    California comes in a close second with 13 ecoregions across four biomes in the same realm. By contrast, Rhode Island is the least biodiverse with just one ecoregion—the Northeastern coastal forests—encompassing the entire state. [1] The terrestrial ecoregions of the 50 states of the United States are as follows:

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

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

    Ecoregions of the United States by state Subcategories. This category has the following 16 subcategories, out of 16 total. ... Ecoregions of Michigan (3 P) Ecoregions ...

  6. Eastern Cascades Slopes and Foothills - Wikipedia

    en.wikipedia.org/wiki/Eastern_Cascades_slopes...

    The Southern Cascades Slope ecoregion is a transitional zone between the Cascades ecoregion and the drier Eastern Cascade Slopes and Foothills, characterized by moderately sloping mountains with medium to high gradient streams. Elevation varies from 3,600 to 6,300 feet (1,100 to 1,900 m).

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

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

    The classification system has four levels. Only the first three levels are shown on this list. "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 ...

  8. Category:Ecoregions of Michigan - Wikipedia

    en.wikipedia.org/.../Category:Ecoregions_of_Michigan

    Pages in category "Ecoregions of Michigan" ... Northern Lakes and Forests (ecoregion) This page was last edited on 15 April 2020, at 11:12 (UTC). Text ...

  9. List of ecoregions in Oregon - Wikipedia

    en.wikipedia.org/wiki/List_of_ecoregions_in_Oregon

    The level III ecoregions in Oregon are the Coast Range (1), Willamette Valley (3), Cascades (4), Eastern Cascades Slopes and Foothills (9), Columbia Plateau (10), Blue Mountains (11), Snake River Plain (12), Klamath Mountains (78), and Northern Basin and Range (80). (Compare to map of Level IV ecoregions.)