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A map of the United States showing the 10 regions of the Environmental Protection Agency. Key: Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont.
Level III subdivides the continent into 182 smaller ecoregions; of these, 104 lie partly or wholly with the United States. [1] [3] 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.
Ecoregions of North America, featuring the 50 United States, the District of Columbia and the five 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.
The commission's 1997 report, Ecological Regions of North America, provides a framework that may be used by government agencies, non-governmental organizations, and academic researchers as a basis for risk analysis, resource management, and environmental study of the continent's ecosystems. [1]
U.S. Census Bureau regions and divisions. Since 1950, the United States Census Bureau defines four statistical regions, with nine divisions. [1] [2] The Census Bureau region definition is "widely used... for data collection and analysis", [3] and is the most commonly used classification system.
Ecoregions of the United States by state Subcategories. This category has the following 16 subcategories, out of 16 total. ... Text is available under the Creative ...
Minnesota ecoregions map prepared in 2007 by the United States Environmental Protection Agency. The list of ecoregions in Minnesota provides an overview to the ecoregions (see also, ecosystem) in the U.S. state of Minnesota, [1] as defined separately by the Environmental Protection Agency/Commission for Environmental Cooperation, the Minnesota Department of Natural Resources, and the World ...