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 | 2 to 2.5 | 2.5 to 3 | 3 to 3.5 | 3.5 to 4 | 4 to 4.5 | 4.5 to 5 | 5 to 5.5 | 5.5 to 6 | 6 to 6.5 | 6.5 to 7 | 7 to 7.5 | Herder's Environment | Copper | |
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District of Columbia | 100% | 100% | |||||||||||||||||||||||||
Florida | 84.3% | 14.5% | 15.0% | 82.2% | 2.85% | ||||||||||||||||||||||
Rhode Island | 92.1% | 100% | |||||||||||||||||||||||||
Vermont | 86.9% | 13.1% | 95.9% | 4.15% | |||||||||||||||||||||||
Kentucky | 100% | 100% | |||||||||||||||||||||||||
Virginia | 99.4% | 63.0% | 37.0% | ||||||||||||||||||||||||
Delaware | 98.4% | 100% | |||||||||||||||||||||||||
Prince Edward Island | 89.2% | 85.1% | 14.9% | ||||||||||||||||||||||||
Mississippi | 99.9% | 1.91% | 52.1% | 46.0% | |||||||||||||||||||||||
West Virginia | 100% | 100% | |||||||||||||||||||||||||
Louisiana | 86.4% | 12.6% | 21.5% | 63.6% | 14.9% | ||||||||||||||||||||||
Hawaii | 4.46% | 95.5% | |||||||||||||||||||||||||
New Jersey | 11.2% | 86.6% | 99.9% | ||||||||||||||||||||||||
South Carolina | 99.7% | 12.4% | 87.6% | ||||||||||||||||||||||||
Connecticut | 15.9% | 84.0% | 100% | ||||||||||||||||||||||||
New York | 19.7% | 1.05% | 8.25% | 44.4% | 47.4% | ||||||||||||||||||||||
Maryland | 97.9% | 77.2% | 22.8% | ||||||||||||||||||||||||
Arkansas | 100% | 98.0% | 2.00% | ||||||||||||||||||||||||
Indiana | 100% | 53.3% | 46.7% | ||||||||||||||||||||||||
Illinois | 99.9% | 18.1% | 81.9% | ||||||||||||||||||||||||
Nunavut | 1.96% | 1.52% | 3.41% | 1.46% | 4.55% | 27.5% | 0.150% | 19.2% | 5.07% | 0.580% | |||||||||||||||||
North Dakota | 100% | 100% | 33.5% | ||||||||||||||||||||||||
Saskatchewan | 8.06% | 57.8% | 33.4% | 31.5% | 61.8% | 6.66% | 100% | ||||||||||||||||||||
Nebraska | 100% | 100% | 99.5% | ||||||||||||||||||||||||
Kansas | 99.9% | 100% | 98.4% | ||||||||||||||||||||||||
Alberta | 17.4% | 54.4% | 6.61% | 21.1% | 21.6% | 71.0% | 7.43% | 100% | |||||||||||||||||||
Oklahoma | 21.6% | 78.4% | 28.9% | 71.1% | 48.3% | ||||||||||||||||||||||
Iowa | 6.36% | 93.6% | 100% | 29.4% | |||||||||||||||||||||||
Alaska | 25.1% | 6.23% | 14.3% | 3.61% | 0.364% | 0.102% | 17.0% | 18.9% | 20.0% | 17.3% | 13.9% | 6.85% | 0.304% | 0.152% | 8 | ||||||||||||
Arizona | 66.3% | 12.9% | 19.7% | 3.51% | 69.2% | 27.3% | 20.9% | 403 | |||||||||||||||||||
Utah | 19.3% | 80.3% | 100% | 84.5% | 105 | ||||||||||||||||||||||
Yukon | 7.08% | 38.7% | 53.4% | 36.2% | 38.5% | 16.4% | 5.02% | 3.91% | 100% | 2 | |||||||||||||||||
Northwest Territories | 3.04% | 63.7% | 9.87% | 22.1% | 27.7% | 18.5% | 4.31% | 15.6% | 1.77% | 0.300% | 1 | ||||||||||||||||
Idaho | 57.3% | 40.7% | 48.1% | 51.9% | 88.8% | 60 | |||||||||||||||||||||
New Hampshire | 82.5% | 17.5% | 23.7% | 76.3% | 1 | ||||||||||||||||||||||
Washington | 44.1% | 18.2% | 34.8% | 6.09% | 55.9% | 38.0% | 0.612% | 20 | |||||||||||||||||||
Wyoming | 6.11% | 27.1% | 46.4% | 3.26% | 96.7% | 100% | 4 | ||||||||||||||||||||
Montana | 31.6% | 66.0% | 89.8% | 10.2% | 100% | 68 | |||||||||||||||||||||
Maine | 44.1% | 52.2% | 16.2% | 71.2% | 12.7% | 11.9% | 2 | ||||||||||||||||||||
Nova Scotia | 17.5% | 6.61% | 0.194% | 99.8% | 1 | ||||||||||||||||||||||
Texas | 17.3% | 4.05% | 13.1% | 1.45% | 25.6% | 56.1% | 16.9% | 39.6% | 2 | ||||||||||||||||||
Missouri | 60.6% | 39.4% | 20.7% | 79.3% | 14.4% | 2 | |||||||||||||||||||||
North Carolina | 99.2% | 3.74% | 93.9% | 11 | |||||||||||||||||||||||
Oregon | 53.3% | 14.9% | 7.11% | 19.6% | 27.0% | 52.7% | 0.664% | 3.11% | 47 | ||||||||||||||||||
New Brunswick | 3.19% | 95.8% | 20.6% | 69.3% | 10.1% | 11.5% | 4 | ||||||||||||||||||||
Alabama | 99.9% | 2.92% | 87.2% | 9.85% | 1 | ||||||||||||||||||||||
New Mexico | 8.59% | 32.9% | 7.36% | 1.32% | 3.54% | 21.3% | 78.7% | 96.3% | 62 | ||||||||||||||||||
Wisconsin | 31.7% | 66.5% | 1.10% | 100% | 1 | ||||||||||||||||||||||
British Columbia | 7.72% | 4.25% | 60.9% | 6.59% | 4.95% | 1.18% | 10.9% | 80.5% | 7.40% | 0.210% | 14 | ||||||||||||||||
Newfoundland and Labrador | 5.23% | 56.9% | 22.4% | 9.26% | 24.1% | 25.5% | 41.2% | 24.2% | 1 | ||||||||||||||||||
Michigan | 25.2% | 1.08% | 100% | 11 | |||||||||||||||||||||||
Pennsylvania | 3.06% | 79.4% | 10.3% | 76.9% | 12.8% | 1 | |||||||||||||||||||||
Colorado | 38.2% | 42.1% | 2.98% | 100% | 100% | 205 | |||||||||||||||||||||
Nevada | 99.6% | 55.5% | 44.5% | 1.83% | 32 | ||||||||||||||||||||||
Massachusetts | 32.4% | 63.3% | 0.220% | 0.204% | 88.4% | 11.2% | 1 | ||||||||||||||||||||
Georgia | 99.9% | 17.7% | 82.3% | 1 | |||||||||||||||||||||||
Québec | 1.01% | 37.0% | 2.25% | 3.73% | 1.51% | 0.462% | 6.48% | 44.1% | 28.1% | 20.7% | 0.145% | 0.452% | 15 | ||||||||||||||
Manitoba | 22.1% | 11.3% | 55.4% | 10.0% | 43.2% | 44.5% | 12.3% | 99.9% | 41 | ||||||||||||||||||
Tennessee | 100% | 26.0% | 74.0% | 4 | |||||||||||||||||||||||
Ontario | 28.1% | 64.1% | 7.08% | 48.4% | 40.0% | 11.6% | 77.4% | 116 | |||||||||||||||||||
California | 26.9% | 2.89% | 29.8% | 39.7% | 0.147% | 33.8% | 21.5% | 35.5% | 86 | ||||||||||||||||||
South Dakota | 3.94% | 96.1% | 100% | 27.8% | 2 | ||||||||||||||||||||||
Ohio | 99.9% | 67.4% | 32.6% | 1 | |||||||||||||||||||||||
Minnesota | 40.6% | 24.1% | 35.2% | 100% | 6.88% | 1 |