Bailey's Ecoregions and Subregions of the United States, 2004

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Abstract/Contents

Abstract: This polygon shapefile 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. This layer is part of the 1997-2014 edition of the National Atlas of the United States.
Purpose: These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:7,500,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.

Type of resource	cartographic, software, multimedia
Form	Shapefile
Extent	5.184
Place	Reston, VA, US
Publisher	National Atlas of the United States
Publication date	2004
Language	English
Digital origin	born digital
Map data	1:75000000Scale not given. ; EPSG::4269 W 179°8ʹ--E 179°47ʹ18ʺ/N 71°23ʹ53ʺ--N 17°40ʹ29ʺ, Scale not given ; EPSG::4326

Creator	United States. Forest Service

Subject	Ecological regions
Subject	Biotic communities
Subject	United States
Subject	Alaska
Subject	Alabama
Subject	Arizona
Subject	Arkansas
Subject	Colorado
Subject	Connecticut
Subject	Delaware
Subject	Florida
Subject	Georgia
Subject	Hawaii
Subject	Idaho
Subject	Illinois
Subject	Indiana
Subject	Iowa
Subject	Kansas
Subject	Kentucky
Subject	Louisiana
Subject	Maine
Subject	Maryland
Subject	Massachusetts
Subject	Michigan
Subject	Minnesota
Subject	Mississippi
Subject	Missouri
Subject	Montana
Subject	Nebraska
Subject	Nevada
Subject	New Hampshire
Subject	New Jersey
Subject	New Mexico
Subject	New York (State)
Subject	North Carolina
Subject	North Dakota
Subject	Ohio
Subject	Oklahoma
Subject	Oregon
Subject	Pennsylvania
Subject	Rhode Island
Subject	South Carolina
Subject	South Dakota
Subject	Tennessee
Subject	Texas
Subject	Utah
Subject	Vermont
Subject	Virginia
Subject	Washington (D.C.)
Subject	Washington (State)
Subject	West Virginia
Subject	Wisconsin
Subject	Wyoming
Subject	United States. Virgin Islands
Subject	Puerto Rico
Subject	2004
Subject	Environment
Subject	Biology and Ecology
Genre	Geospatial data
Genre	Cartographic dataset

Use limitation	None. Acknowledgment of the USDA Forest Service and (or) the National Atlas of the United States of America would be appreciated in products derived from these data.
WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location	https://purl.stanford.edu/tj200ct4975

Use and reproduction: This item is in the public domain. There are no restrictions on use.
Copyright: This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation: U. S. Forest Service. (2004). Bailey's Ecoregions and Subregions of the United States, 2004. National Atlas of the United States. Available at: http://purl.stanford.edu/tj200ct4975.

National atlas of the United States of America, 1997-2014

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