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Ecological Regions: Level 1 Regions

North AmericaPhysical Environment

Extent of the Level I Ecological Regions of North America

EPA

A 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.

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Ecological Regions: Level 1 Regions

Clean Water Access

Silver Mines

Change in Acreage of Farmland (U.S.)

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

Percent

Silver

Class

Rank

Acres

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%73.81481481481481
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