EarthWorks Geospatial Catalog

Bailey's Ecoregions and Subregions United States, Puerto Rico and U.S. Virgin Islands 2004

This polygon data set is commonly called Bailey’s ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.S. Virgin Islands. Four levels of detail are included to show a hierarchy of ecosystems. The largest ecosystems are domains, which are groups of related climates and which are differentiated based on precipitation and temperature. Divisions represent the climates within domains and are differentiated based on precipitation levels and patterns as well as temperature. Divisions are subdivided into provinces, which are differentiated based on vegetation or other natural land covers. The finest level of detail is described by subregions, called sections, which are subdivisions of provinces based on terrain features. Also identified are mountainous areas that exhibit different ecological zones based on elevation.
Geological Survey (U.S.)
United States, Alabama, Florida, Hawaii, Mississippi, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Minnesota, Louisiana, Maine, Massachusetts, Michigan, Maryland, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Virgin Islands, Puerto Rico, Northern Hemisphere, Western Hemisphere, North America, and United States
polygon, environment, elevation, location, climatologyMeteorologyAtmosphere, Biology., Ecosystems, Climate., Temperature., Ecological regions, Ecology., Altitudes, Mountains., Terrain study, Vegetation and climate. , Plants., and Land cover.
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