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 | Iron Ore Mines | 0.5 to 1.0 | 1.0 to 1.5 | 1.5 to 2.0 | 2.0 to 3.0 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 25.1% | 6.23% | 14.3% | 3.61% | 0.667% | 69.6% | 29.7% | ||||||||||||
Arizona | 66.3% | 12.9% | 19.7% | 100% | |||||||||||||||
Utah | 19.3% | 80.3% | 1 | 42.2% | 57.8% | ||||||||||||||
Yukon | 7.08% | 38.7% | 53.4% | 89.2% | 10.8% | ||||||||||||||
Northwest Territories | 3.04% | 63.7% | 1 | 58.9% | 41.1% | ||||||||||||||
District of Columbia | 100% | 100% | |||||||||||||||||
Florida | 84.3% | 14.5% | 80.2% | 19.8% | |||||||||||||||
Idaho | 57.3% | 40.7% | 18.3% | 81.7% | |||||||||||||||
New Hampshire | 82.5% | 17.5% | 76.6% | 23.4% | |||||||||||||||
Rhode Island | 92.1% | 100% | |||||||||||||||||
Vermont | 86.9% | 13.1% | 25.6% | 74.4% | |||||||||||||||
Washington | 44.1% | 18.2% | 34.8% | 75.8% | 24.2% | ||||||||||||||
Wyoming | 6.11% | 27.1% | 46.4% | 98.2% | 1.78% | ||||||||||||||
Nunavut | 1.96% | 1.52% | 3.41% | 11.7% | 88.3% | ||||||||||||||
Montana | 31.6% | 66.0% | 29.3% | 70.7% | |||||||||||||||
Maine | 44.1% | 52.2% | 46.2% | 53.8% | |||||||||||||||
North Dakota | 100% | 100% | |||||||||||||||||
Kentucky | 100% | 100% | |||||||||||||||||
Nova Scotia | 17.5% | 6.61% | 100% | ||||||||||||||||
Virginia | 99.4% | 100% | |||||||||||||||||
Delaware | 98.4% | 100% | |||||||||||||||||
Prince Edward Island | 89.2% | 69.9% | 30.1% | ||||||||||||||||
Saskatchewan | 8.06% | 57.8% | 33.4% | 100% | |||||||||||||||
Mississippi | 99.9% | 1.68% | 98.3% | ||||||||||||||||
West Virginia | 100% | 100% | |||||||||||||||||
Nebraska | 100% | 86.0% | 14.0% | ||||||||||||||||
Texas | 17.3% | 4.05% | 13.1% | 0.700% | 99.3% | ||||||||||||||
Missouri | 60.6% | 39.4% | 1 | 99.3% | 0.692% | ||||||||||||||
Louisiana | 86.4% | 12.6% | 22.6% | 77.4% | |||||||||||||||
Hawaii | 100% | ||||||||||||||||||
North Carolina | 99.2% | 0.757% | 99.2% | ||||||||||||||||
Oregon | 53.3% | 14.9% | 7.11% | 84.6% | 15.4% | ||||||||||||||
New Brunswick | 3.19% | 95.8% | 28.8% | 71.2% | |||||||||||||||
Alabama | 99.9% | 0.226% | 99.8% | ||||||||||||||||
New Mexico | 8.59% | 32.9% | 7.36% | 1.32% | 3.54% | 100% | |||||||||||||
Kansas | 99.9% | 100% | |||||||||||||||||
Wisconsin | 31.7% | 66.5% | 1.10% | 2 | 100% | ||||||||||||||
British Columbia | 7.72% | 4.25% | 60.9% | 6.59% | 4.95% | 8.35% | 91.6% | ||||||||||||
Newfoundland and Labrador | 5.23% | 56.9% | 22.4% | 1 | 62.6% | 37.4% | |||||||||||||
New Jersey | 11.2% | 86.6% | 100% | ||||||||||||||||
South Carolina | 99.7% | 0.446% | 99.6% | ||||||||||||||||
Michigan | 25.2% | 1.08% | 13 | 100% | |||||||||||||||
Alberta | 17.4% | 54.4% | 6.61% | 21.1% | 100% | ||||||||||||||
Connecticut | 15.9% | 84.0% | 100% | ||||||||||||||||
Pennsylvania | 3.06% | 79.4% | 99.6% | 0.379% | |||||||||||||||
Colorado | 38.2% | 42.1% | 2.98% | 100% | |||||||||||||||
Nevada | 99.6% | 59.2% | 40.8% | ||||||||||||||||
Massachusetts | 32.4% | 63.3% | 0.220% | 99.8% | |||||||||||||||
Georgia | 99.9% | 10.5% | 89.5% | ||||||||||||||||
New York | 19.7% | 1.05% | 1 | 44.6% | 55.4% | ||||||||||||||
Maryland | 97.9% | 100% | |||||||||||||||||
Québec | 1.01% | 37.0% | 2.25% | 3.73% | 1.51% | 1 | 3.13% | 86.6% | 10.3% | ||||||||||
Manitoba | 22.1% | 11.3% | 55.4% | 10.0% | 100% | ||||||||||||||
Oklahoma | 21.6% | 78.4% | 100% | ||||||||||||||||
Tennessee | 100% | 100% | |||||||||||||||||
Ontario | 28.1% | 64.1% | 7.08% | 100% | |||||||||||||||
California | 26.9% | 2.89% | 29.8% | 39.7% | 1 | 100% | |||||||||||||
Arkansas | 100% | 100% | |||||||||||||||||
South Dakota | 3.94% | 96.1% | 18.5% | 81.5% | |||||||||||||||
Ohio | 99.9% | 86.8% | 13.2% | ||||||||||||||||
Indiana | 100% | 78.8% | 21.2% | ||||||||||||||||
Minnesota | 40.6% | 24.1% | 35.2% | 14 | 100% | ||||||||||||||
Iowa | 6.36% | 93.6% | 9.22% | 90.8% | |||||||||||||||
Illinois | 99.9% | 57.7% | 42.3% | ||||||||||||||||