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2 Puget Lowland. 3 Willamette Valley. 111 Ahklun Mountains and Kilbuck Mountains. 113 Alaska Peninsula Mountains. 115 Cook Inlet. 119 Pacific Coastal Mountains. 120 Coastal Western Hemlock-Sitka Spruce Forests. The corresponding CEC ecoregion in Canada is called the Pacific Maritime Ecozone.
Ecoregions of North America, featuring the 50 United States, the District of Columbia and the 5 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.
"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. For an example of Level IV data, see List of ecoregions in Oregon and the associated articles.
The EPA ecoregion classification system has four levels, but only Levels I, III, and IV are shown on this list. Level I divides North America into 15 broad ecoregions (or biomes). Illinois is almost entirely within the Eastern Temperate Forest environment Level I region, although very small sections in its extreme west are in the Great Plains ...
Appalachian hemlock–northern hardwood forest. Appalachian mixed mesophytic forests. Appalachian Province. Appalachian temperate rainforest. Appalachian–Blue Ridge forests. Arizona Mountains forests. Arizona/New Mexico Mountains ecoregion. Arkansas Valley (ecoregion) Atlantic and Gulf Coastal Plain Province.
A map of the bioregions of Canada and the US. An ecoregion (ecological region) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of ...
Lists of ecoregions in the United States. Lists of ecoregions in the United States may refer to: List of ecoregions in the United States (EPA), United States Environmental Protection Agency system. List of ecoregions in the United States (WWF), World Wildlife Fund system. Categories: Lists of environment lists. United States geography-related ...
The following are three major hot and dry deserts in North America, all located in the Southwestern United States and Northern Mexico. [2] The Chihuahuan Desert is the largest hot desert in North America, located in the Southwestern United States and Northern Mexico. Its total area is 140,000 sq mi (360,000 km 2).