Ecological Regions: Level 1 Regions
North AmericaPhysical EnvironmentExtent of the Level I Ecological Regions of North America
EPAA map of North America shows various ecological regions, each marked with a distinct color to represent different Level 1 ecological regions.
Arctic Cordillera (Red): Found in the northernmost parts of Canada, specifically the Arctic Archipelago. Tundra (Blue): Covers large portions of northern Canada, including parts of Nunavut and the Northwest Territories, as well as coastal areas of Alaska. Taiga (Purple): Spans across central and northern Canada, covering parts of Quebec, Ontario, Manitoba, Saskatchewan, Alberta, and British Columbia. Hudson Plain (Orange): Located in the northeastern part of Canada, around the Hudson Bay area. Boreal Forests (Yellow): Encompasses large areas in Canada, south of the tundra and taiga regions, and extends into parts of Newfoundland and Labrador. Northwestern Forested Mountains (Green): Found along the western coast of Canada and the United States, covering parts of British Columbia and Alaska. Marine West Coast Forest (Brown): Occupies the coastal regions of the Pacific Northwest, including areas in British Columbia, Washington, Oregon, and northern California. Eastern Temperate Forests (Pink): Stretch from the Great Lakes region through the northeastern United States and into eastern Canada. Great Plains (Grey): Span the central United States from Canada to Texas, including parts of Alberta, Saskatchewan, Manitoba, and several central U.S. states. Deserts and Steppes (Dark Green): Found in the southwestern United States and northern Mexico, covering areas in Arizona, New Mexico, and parts of California and Nevada. Mediterranean California (Dark Pink): Specific to the coastal regions of central and southern California. Southern Semi-Arid Highlands (Gold): Located in central Mexico and parts of the southwestern United States. Temperate Sierras (Dark Brown): Found in Mexico, primarily in the Sierra Madre ranges. Tropical Dry Forests (Light Brown): Present in parts of southern Mexico and Central America. Tropical Wet Forests (Light Tan): Located in the southeastern part of Mexico and Central America, including the Yucatan Peninsula.
Arctic Cordillera | Tundra | Taiga | Hudson Plain | Boreal forests | Northwestern forested mountains | Marine west coast forest | Eastern temperate forests | Great Plains | Deserts and steppes | Mediterranean California | Southern semi-arid highlands | Temperate sierras | Tropical wet forests | Class | Rank | Million people | No data | Arid and low water use | Low (<10%) | Low-medium (10-20%) | Medium-high (20-40%) | High (40-80%) | Extremely high (>80%) | Virgil C Summer nuclear power plant | River Bend nuclear power plant | Clinton nuclear power plant | Donald C Cook nuclear power plant | Catawba nuclear power plant | Columbia nuclear power plant | Limerick nuclear power plant | Diablo Canyon nuclear power plant | Sequoyah nuclear power plant | LaSalle nuclear power plant | Byron nuclear power plant | Watts Bar nuclear power plant | McGuire nuclear power plant | Alvin W Vogtle nuclear power plant | Braidwood nuclear power plant | Comanche Peak nuclear power plant | Waterford nuclear power plant | Browns Ferry nuclear power plant | Callaway nuclear power plant | Wolf Creek nuclear power plant | Seabrook nuclear power plant | Susquehanna nuclear power plant | South Texas nuclear power plant | Peach Bottom nuclear power plant | Palo Verde nuclear power plant | Grand Gulf nuclear power plant | Prairie Island nuclear power plant | Robert Emmett Ginna nuclear power plant | Point Beach nuclear power plant | Nine Mile Point nuclear power plant | Monticello nuclear power plant | H. B. Robinson nuclear power plant | Cooper nuclear power plant | Turkey Point power station | Bruce nuclear power plant | James A Fitzpatrick nuclear power plant | Surry nuclear power plant | Oconee nuclear power plant | Arkansas Nuclear One nuclear power plant | Calvert Cliffs nuclear power plant | Edwin I Hatch nuclear power plant | Joseph M Farley nuclear power plant | Millstone nuclear power plant | Davis Besse nuclear power plant | Dresden nuclear power plant | Quad Cities nuclear power plant | Beaver Valley nuclear power plant | Brunswick nuclear power plant | Shearon Harris nuclear power plant | North Anna nuclear power plant | |
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| 1.96% | 6.84% | 22.1% | 11.9% | 32.1% | 29.3% | 5.59% | 34.8% | 38.2% | 26.9% | 39.7% | 6.89% | 11.3% | 14.5% | 0.654% | 3.65% | 47.2% | 4.86% | 6.22% | 9.97% | 14.9% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||