Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: USDA Forest Service
        Publication_Date: 200403
        Title:
          Baileys Ecoregions and Subregions of the United States, Puerto Rico,
          and the U.S. Virgin Islands
        Publication_Information:
          Publication_Place: Reston, VA
          Publisher: National Atlas of the United States
        Online_Linkage: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio>
        Online_Linkage: <http://www.fs.fed.us/institute/ecoregions/eco_download.html>
    Description:
      Abstract:
        This map layer is commonly called Baileys 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.
      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.
      Supplemental_Information:
        The same data are available from both the National Atlas of the United
        States and from the USDA Forest Service Inventory and Monitoring
        Institute.

        Detailed descriptions of the domains, divisions, and provinces represented
        in this map layer are available at:
        <http://www.fs.fed.us/institute/ecoregions/ecoreg1_home.html>.  Detailed
        descriptions of the sections represented in this map layer are available
        at: <http://www.fs.fed.us/land/pubs/ecoregions/>.

    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 200402
      Currentness_Reference: Publication date
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -127.840621
        East_Bounding_Coordinate: -65.403767
        North_Bounding_Coordinate: 51.540005
        South_Bounding_Coordinate: 22.948654
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: biota
        Theme_Keyword: environment
      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: Ecoregions
        Theme_Keyword: Baileys ecoregions
        Theme_Keyword: Ecosystems
        Theme_Keyword: Regional Ecology
        Theme_Keyword: Ecosystem Geography
        Theme_Keyword: Mapping
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: United States
      Place:
        Place_Keyword_Thesaurus:
          U.S. Department of Commerce, 1987, Codes for the Identification of the
          States, the District of Columbia and the Outlying Areas of The United
          States, and Associated Areas (FIPS 5-2): Washington, DC, National
          Institute of Standards and Technology.
        Place_Keyword: Alabama
        Place_Keyword: Alaska
        Place_Keyword: Arizona
        Place_Keyword: Arkansas
        Place_Keyword: California
        Place_Keyword: Colorado
        Place_Keyword: Connecticut
        Place_Keyword: Delaware
        Place_Keyword: District of Columbia
        Place_Keyword: Florida
        Place_Keyword: Georgia
        Place_Keyword: Hawaii
        Place_Keyword: Idaho
        Place_Keyword: Illinois
        Place_Keyword: Indiana
        Place_Keyword: Iowa
        Place_Keyword: Kansas
        Place_Keyword: Kentucky
        Place_Keyword: Louisiana
        Place_Keyword: Maine
        Place_Keyword: Maryland
        Place_Keyword: Massachusetts
        Place_Keyword: Michigan
        Place_Keyword: Minnesota
        Place_Keyword: Mississippi
        Place_Keyword: Missouri
        Place_Keyword: Montana
        Place_Keyword: Nebraska
        Place_Keyword: Nevada
        Place_Keyword: New Hampshire
        Place_Keyword: New Jersey
        Place_Keyword: New Mexico
        Place_Keyword: New York
        Place_Keyword: North Carolina
        Place_Keyword: North Dakota
        Place_Keyword: Ohio
        Place_Keyword: Oklahoma
        Place_Keyword: Oregon
        Place_Keyword: Pennsylvania
        Place_Keyword: Rhode Island
        Place_Keyword: South Carolina
        Place_Keyword: South Dakota
        Place_Keyword: Tennessee
        Place_Keyword: Texas
        Place_Keyword: Utah
        Place_Keyword: Vermont
        Place_Keyword: Virginia
        Place_Keyword: Washington
        Place_Keyword: West Virginia
        Place_Keyword: Wisconsin
        Place_Keyword: Wyoming
        Place_Keyword: Puerto Rico
        Place_Keyword: U.S. Virgin Islands
    Access_Constraints: None
    Use_Constraints:
      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.
    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Robert G. Bailey
          Contact_Organization: USDA Forest Service Inventory and Monitoring Institute
        Contact_Address:
          Address_Type: Mailing and physical address
          Address: 2150 Centre Ave, Bldg A
          City: Fort Collins
          State_or_Province: CO
          Postal_Code: 80526
          Country: USA
        Contact_Voice_Telephone: 970-295-5727
        Contact_Facsimile_Telephone: 970-295-5885
        Contact_Electronic_Mail_Address: rgbailey@fs.fed.us
    Native_Data_Set_Environment:
      Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 1; ESRI
      ArcCatalog 8.1.0.642.
    Cross_Reference:
      Citation_Information:
        Originator: Robert G. Bailey
        Publication_Date: 1995
        Title: Description of the Ecoregions of the United States
        Edition: Second Edition, Revised and Enlarged
        Geospatial_Data_Presentation_Form: Map
        Series_Information:
          Series_Name: Miscellaneous Publication
          Issue_Identification: 1391
        Publication_Information:
          Publication_Place: Washington, DC
          Publisher: USDA Forest Service
        Other_Citation_Details: 108 pages with separate map at 1:7,500,000
        Online_Linkage: <http://www.fs.fed.us/institute/ecoregions/ecoreg1_home.html>
    Cross_Reference:
      Citation_Information:
        Originator: USDA Forest Service
        Publication_Date: 200506
        Title: Omerniks Level III Ecoregions of the Continental United States
        Geospatial_Data_Presentation_Form: Map
        Publication_Information:
          Publication_Place: Reston, VA
          Publisher: National Atlas of the United States
        Online_Linkage: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio>
        Online_Linkage: <http://www.epa.gov/wed/pages/ecoregions/ecoregions.htm>

  Data_Quality_Information:
    Logical_Consistency_Report: No checks for topological consistency were performed on this map layer.
    Completeness_Report:
      This map layer includes ecoregions and subregions information for the United
      States, the District of Columbia, Puerto Rico, and the U.S. Virgin Islands.
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Bailey, R.G.
            Originator: McNab, W.H.
            Originator: Avers, P.E.
            Originator: King, T.
            Publication_Date: 1994
            Title: Ecoregions and Subregions of the United States (Lower 48)
            Geospatial_Data_Presentation_Form: Vector digital data
            Publication_Information:
              Publication_Place: Washington, DC
              Publisher: USDA Forest Service
        Source_Scale_Denominator: 7500000
        Type_of_Source_Media: Online
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1994
          Source_Currentness_Reference: Publication date
        Source_Citation_Abbreviation: FS Lower48 Ecoregions
        Source_Contribution: Spatial and attribute information

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Bailey, R.G.
            Originator: McNab, W.H.
            Originator: Avers, P.E.
            Originator: King, T.
            Publication_Date: 1994
            Title: Ecoregions and Subregions of Alaska
            Geospatial_Data_Presentation_Form: Vector digital data
            Publication_Information:
              Publication_Place: Washington, DC
              Publisher: USDA Forest Service
        Source_Scale_Denominator: 7500000
        Type_of_Source_Media: Online
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1994
          Source_Currentness_Reference: Publication date
        Source_Citation_Abbreviation: FS Alaska Ecoregions
        Source_Contribution: Spatial and attribute information

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Bailey, R.G.
            Originator: McNab, W.H.
            Originator: Avers, P.E.
            Originator: King, T.
            Publication_Date: 1994
            Title: Ecoregions and Subregions of Hawaii
            Geospatial_Data_Presentation_Form: Vector digital data
            Publication_Information:
              Publication_Place: Washington, VA
              Publisher: USDA Forest Service
        Source_Scale_Denominator: 7500000
        Type_of_Source_Media: Online
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1994
          Source_Currentness_Reference: Publication date
        Source_Citation_Abbreviation: FS Hawaii Ecoregions
        Source_Contribution: Attribute information

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Bailey, R.G.
            Originator: McNab, W.H.
            Originator: Avers, P.E.
            Originator: King, T.
            Publication_Date: 1994
            Title: Ecoregions and Subregions of Puerto Rico and the Virgin Islands
            Geospatial_Data_Presentation_Form: Vector digital data
            Publication_Information:
              Publication_Place: Washington, DC
              Publisher: USDA Forest Service
        Source_Scale_Denominator: 7500000
        Type_of_Source_Media: Online
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1994
          Source_Currentness_Reference: Publication date
        Source_Citation_Abbreviation: FS PR_VI Ecoregions
        Source_Contribution: Attribute information

      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: National Atlas of the United States
            Publication_Date: 200206
            Title: State Boundaries of the United States
            Publication_Information:
              Publication_Place: Reston, VA
              Publisher: National Atlas of the United States
            Online_Linkage: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbound#chpbound>
        Source_Scale_Denominator: 2000000
        Type_of_Source_Media: Online
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 1972
              Ending_Date: 2002
          Source_Currentness_Reference: Ground condition
        Source_Citation_Abbreviation: Atlas-States
        Source_Contribution: Spatial information

      Process_Step:
        Process_Description:
          The USDA Forest Service ecoregions shapefile for the 48 conterminous
          States and the export file for Alaska were downloaded and reprojected to
          a Lambert Azimuthal Equal Area projection using ArcInfo.  The
          shorelines were removed and replaced with shorelines from the National
          Atlas States map layer.  Linework was cleaned and adjusted.  USDS Forest
          Service ecoregions attribution for Hawaii, Puerto Rico, and the U.S.
          Virgin Islands was added to the polygons for those areas defined by the
          National Atlas shorelines.

          The polygon attribution was checked and the following corrections were
          made: For Ecocode = -263A the Province field was blank; this was
          corrected to California Coastal Steppe-Mixed Forest-Redwood Forest
          Province.  For Ecocode = M242A, Ecocode = M242B, and Ecocode = M242C
          the Division was corrected from Marine Regime Mountains Redwood Forest
          Province to Marine Regime Mountains.
        Source_Used_Citation_Abbreviation: FS Lower48 Ecoregions
        Source_Used_Citation_Abbreviation: FS Alaska Ecoregions
        Source_Used_Citation_Abbreviation: FS Hawaii Ecoregions
        Source_Used_Citation_Abbreviation: FS PR_VI Ecoregions
        Source_Used_Citation_Abbreviation: Atlas-States
        Process_Date: 200401

  Spatial_Data_Organization_Information:
    Direct_Spatial_Reference_Method: Vector
    Point_and_Vector_Object_Information:
      SDTS_Terms_Description:
        SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
        Point_and_Vector_Object_Count: 3072

  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 0.000278
        Longitude_Resolution: 0.000278
        Geographic_Coordinate_Units: Decimal degrees
      Geodetic_Model:
        Horizontal_Datum_Name: North American Datum of 1983
        Ellipsoid_Name: GRS1980
        Semi-major_Axis: 6378137.0
        Denominator_of_Flattening_Ratio: 298.257222

  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: Ecoregion (described by ecoregp075.dbf)
        Entity_Type_Definition:
          An ecosystem of regional extent.  The polygons in this map layer
          represent subregion sections, which are the finest level of detail.
          Sections are further classified into provinces, divisions, and domains.
        Entity_Type_Definition_Source: National Atlas of the United States
      Attribute:
        Attribute_Label: Shape
        Attribute_Definition: The representation of the entity in the data.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Polygon
            Enumerated_Domain_Value_Definition: 2-dimensional element
            Enumerated_Domain_Value_Definition_Source: ESRI GIS software
      Attribute:
        Attribute_Label: Area
        Attribute_Definition:
          The size of the shape in coverage units.  In the distributed file,
          coverage units represent square decimal degrees.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.000
            Range_Domain_Maximum: 34.509
      Attribute:
        Attribute_Label: Perimeter
        Attribute_Definition:
          The perimeter of the shape in coverage units.  In the distributed
          file, coverage units represent decimal degrees.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.010
            Range_Domain_Maximum: 65.705
      Attribute:
        Attribute_Label: Ecoregp075
        Attribute_Definition: Internal feature number.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 2
            Range_Domain_Maximum: 3073
      Attribute:
        Attribute_Label: Ecocode
        Attribute_Definition:
          A five-character code that corresponds to the narrative description in
          the attribute Section.  Ecocode and Section represent the lowest mapping
          level in the hierarchy of ecoregions and subregions.  The first
          character is an indication of whether the section is mountainous.  The
          next three digits are a code identifying the province, and the last
          character is a letter identifying the section within the province.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -124A
            Range_Domain_Maximum: M423A
      Attribute:
        Attribute_Label: Domain
        Attribute_Definition:
          A major ecoregion distinguished from other domains by climate,
          precipitation and temperature.  This is the highest level in the
          hierarchy of ecoregions.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Dry domain
            Enumerated_Domain_Value_Definition:
              An ecoregion whose most important characteristic is the dryness of
              the environment.  This domain annually loses more water through
              evaporation from the surface than it gains through precipitation.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Humid temperate domain
            Enumerated_Domain_Value_Definition:
              An ecoregion located in the middle latitudes and with a climate
              controlled by both tropical and polar air masses.  This domain has
              pronounced seasons with strong annual cycles of temperature and
              precipitation.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Humid tropical domain
            Enumerated_Domain_Value_Definition:
              An ecoregion located in the low latitudes and with a climate
              controlled by tropical and equatorial air masses.  This domain has
              no winter season and experiences heavy average annual rainfall.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Polar domain
            Enumerated_Domain_Value_Definition:
              An ecoregion located at high latitude and with a climate controlled
              by polar and arctic air masses.  This domain has low temperatures,
              severe winters, and small amounts of precipitation.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
      Attribute:
        Attribute_Label: Division
        Attribute_Definition:
          A subdivision of a domain.  A division represents a climate within a
          domain and is differentiated from other divisions based on precipitation
          levels and patterns as well as temperature.  This is the second level in
          the hierarchy of ecoregions.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: (See table below)
            Enumerated_Domain_Value_Definition:
              The values for Division are listed below, along with the domains
              with which they are associated.  Detailed definitions of divisions
              can be found at
              <http://www.fs.fed.us/colorimagemap/ecoreg1_divisions.html>.
              >
              >Domain                   Divisions
              >-------------------------------------------------------------------
              >Dry Domain               Temperate Desert Division
              >                         Temperate Desert Regime Mountains
              >                         Temperate Steppe Division
              >                         Temperate Steppe Regime Mountains
              >                         Tropical/Subtropical Desert Division
              >                         Tropical/Subtropical Regime Mountains
              >                         Tropical/Subtropical Steppe Division
              >
              >Humid temperate domain   Hot Continental Division
              >                         Hot Continental Regime Mountains
              >                         Marine Division
              >                         Marine Regime Mountains
              >                         Mediterranean Division
              >                         Mediterranean Regime Mountains
              >                         Prairie Division
              >                         Subtropical Division
              >                         Subtropical Regime Mountains
              >                         Warm Continental Division
              >                         Warm Continental Regime Mountains
              >
              >Humid tropical domain    Rainforest Regime Mountains
              >                         Savanna Division
              >                         Savanna Regime Mountains
              >
              >Polar domain             Subarctic Division
              >                         Subarctic Regime Mountains
              >                         Tundra Division
              >                         Tundra Regime Mountains
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
      Attribute:
        Attribute_Label: Province
        Attribute_Definition:
          A subdivision of a division.  A province represents variations in
          vegetation or other natural land covers within a division.  Mountainous
          areas that exhibit different ecological zones based on elevation
          (elevational zonation) are distinguished according to the character of
          the zonation by listing the elevational zones from lower to upper.  This
          is the third level in the hierarchy of ecoregions.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: (See table below)
            Enumerated_Domain_Value_Definition:
              The values for Province are listed below, along with the divisions
              with which they are associated.  Detailed definitions of provinces
              can be found at
              <http://www.fs.fed.us/colorimagemap/ecoreg1_provinces.html>.
              >
              >Division          Provinces
              >-------------------------------------------------------------------
              >Hot Continental Division
              >                  Eastern Broadleaf Forest (Oceanic) Province
              >                  Eastern Broadleaf Forest (Continental) Province
              >
              >Hot Continental Regime Mountains
              >                  Central Appalachian Broadleaf Forest-Coniferous
              >                    Forest-Meadow Province
              >                  Ozark Broadleaf Forest - Meadow Province
              >
              >Marine Division
              >                  Pacific Lowland Mixed Forest Province
              >
              >Marine Regime Mountains
              >                  Cascade Mixed Forest-Coniferous Forest-Alpine
              >                    Meadow Province
              >                  Pacific Coastal Mountains Forest-Meadow
              >                    Province
              >                  Pacific Gulf Coastal Forest-Meadow Province
              >
              >Mediterranean Division
              >                  California Coastal Chaparral Forest and Shrub
              >                    Province
              >                  California Coastal Steppe-Mixed Forest-Redwood
              >                    Forest Province
              >                  California Dry Steppe Province
              >
              >Mediterranean Regime Mountains
              >                  California Coastal Range Open Woodland-Shrub-
              >                    Coniferous Forest-Meadow Province
              >                  Sierran Steppe-Mixed Forest-Coniferous Forest-
              >                    Alpine Meadow Province
              >
              >Prairie Division
              >                  Prairie Parkland (Subtropical) Province
              >                  Prairie Parkland (Temperate) Province
              >
              >Rainforest Regime Mountains
              >                  Hawaiian Islands Province
              >
              >Savanna Division
              >                  Everglades Province
              >
              >Savanna Regime Mountains
              >                  Puerto Rico Province
              >
              >Subarctic Division
              >                  Coastal Trough Humid Tayga Province
              >                  Upper Yukon Tayga Province
              >                  Yukon Intermontane Plateaus Tayga Province
              >
              >Subarctic Regime Mountains
              >                  Alaska Range Humid Tayga-Tundra-Meadow Province
              >                  Upper Yukon Tayga-Meadow Province
              >                  Yukon Intermontane Plateaus Tayga-Meadow
              >                    Province
              >
              >Subtropical Division
              >                  Lower Mississippi Riverine Forest Province
              >                  Outer Coastal Plain Mixed Forest Province
              >                  Southeastern Mixed Forest Province
              >
              >Subtropical Regime Mountains
              >                  Ouachita Mixed Forest - Meadow Province
              >
              >Temperate Desert Division
              >                  Intermountain Semi-Desert Province
              >                  Intermountain Semi-Desert and Desert Province
              >
              >Temperate Desert Regime Mountains
              >                  Nevada-Utah Mountains-Semi-Desert-Coniferous
              >                    Forest-Alpine Meadow Province
              >
              >Temperate Steppe Division
              >                  Great Plains-Palouse Dry Steppe Province
              >                  Great Plains Steppe Province
              >
              >Temperate Steppe Regime Mountains
              >                  Black Hills Coniferous Forest Province
              >                  Middle Rocky Mountain Steppe-Coniferous Forest-
              >                    Alpine Meadow Province
              >                  Northern Rocky Mountain Forest-Steppe-Coniferous
              >                    Forest-Alpine Meadow Province
              >                  Southern Rocky Mountain Steppe-Open Woodland-
              >                    Coniferous Forest-Alpine Meadow Province
              >
              >Tropical/Subtropical Desert Division
              >                  American Semi-Desert and Desert Province
              >                  Chihuahuan Semi-Desert Province
              >
              >Tropical/Subtropical Regime Mountains
              >                  Arizona-New Mexico Mountains Semi-Desert-Open
              >                    Woodland-Coniferous Forest-Alpine Meadow
              >                    Province
              >
              >Tropical/Subtropical Steppe Division
              >                  Colorado Plateau Semi-Desert Province
              >                  Great Plains Steppe and Shrub Province
              >                  Southwest Plateau and Plains Dry Steppe and Shrub
              >                    Province
              >
              >Tundra Division
              >                  Arctic Tundra Province
              >                  Bering Tundra (Northern) Province
              >                  Bering Tundra (Southern) Province
              >
              >Tundra Regime Mountains
              >                  Ahklun Mountains Tundra-Meadow Province
              >                  Aleutian Oceanic Meadow-Heath Province
              >                  Brooks Range Tundra-Polar Desert Province
              >                  Seward Peninsula Tundra-Meadow Province
              >
              >Warm Continental Division
              >                  Laurentian Mixed Forest Province
              >
              >Warm Continental Regime Mountains
              >                  Adirondack-New England Mixed Forest-Coniferous
              >                    Forest-Alpine Meadow Province
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
      Attribute:
        Attribute_Label: Section
        Attribute_Definition:
          A subdivision of a province.  A section represents different landform
          groupings within a province.  This is the lowest level in the hierarchy
          of ecoregions and subregions.  Narrative descriptions of sections
          correspond to unique Ecocode values, above.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: (See table below)
            Enumerated_Domain_Value_Definition:
              The values for Section are listed below, along with the provinces
              with which they are associated.  Detailed definitions of sections
              can be found at <http://www.fs.fed.us/land/pubs/ecoregions/>.
              >
              >Province
              >Ecocode     Section
              >-------------------------------------------------------------------
              >Adirondack-New England Mixed Forest-Coniferous Forest-Alpine Meadow
              >  Province
              >M212A       White Mountains Section
              >M212B       New England Piedmont Section
              >M212C       Green, Taconic, Berkshire Mountains Section
              >M212D       Adirondack Highlands Section
              >M212E       Catskill Mountains Section
              >
              >Ahklun Mountains Tundra-Meadow Province
              >M126A       Ahklun Mountains Section
              >
              >Alaska Range Humid Tayga-Tundra-Meadow Province
              >M135A       Alaska Mountains Section
              >M135B       Wrangell Mountains Section
              >
              >Aleutian Oceanic Meadow-Heath Province
              >M127A       Alaska Peninsula Section
              >M127B       Aleutian Islands Section
              >M127C       West Kodiak Island Section
              >
              >American Semi-Desert and Desert Province
              >-322A       Mojave Desert Section
              >-322B       Sonoran Desert Section
              >-322C       Colorado Desert Section
              >
              >Arctic Tundra Province
              >-124A       Coastal Plain
              >
              >Arizona-New Mexico Mountains Semi-Desert-Open Woodland-Coniferous
              >  Forest-Alpine Meadow Province
              >M313A       White Mountain-San Francisco Peaks-Mogollon Rim Section
              >M313B       Sacramento-Monzano Mountain Section
              >
              >Bering Tundra (Northern) Province
              >-125A       Kotzebue Sound Lowlands Section
              >-125B       Yukon-Kuskokwim Delta Section
              >
              >Bering Tundra (Southern) Province
              >-126A       Bristol Bay Lowlands Section
              >
              >Black Hills Coniferous Forest Province
              >M334A       Black Hills Section
              >
              >Brooks Range Tundra-Polar Desert Province
              >M121A       Foothills Section
              >M121B       Mountains Section
              >
              >California Coastal Chaparral Forest and Shrub Province
              >-261A       Central California Coast Section
              >-261B       Southern California Coast Section
              >
              >California Coastal Range Open Woodland-Shrub-Coniferous Forest-
              >  Meadow Province
              >M262A       Central California Coast Ranges Section
              >M262B       Southern California Mountains and Valleys Section
              >
              >California Coastal Steppe-Mixed Forest-Redwood Forest Province
              >-263A       Northern California Coast Section
              >
              >California Dry Steppe Province
              >-262A       Great Valley Section
              >
              >Cascade Mixed Forest-Coniferous Forest-Alpine Meadow Province
              >M242A       Oregon and Washington Coast Ranges Section
              >M242B       Western Cascades Section
              >M242C       Eastern Cascades Section
              >
              >Central Appalachian Broadleaf Forest-Coniferous Forest-Meadow
              >  Province
              >M221A       Northern Ridge and Valley Section
              >M221B       Allegheny Mountains Section
              >M221C       Northern Cumberland Mountains Section
              >M221D       Blue Ridge Mountains Section
              >
              >Chihuahuan Semi-Desert Province
              >-321A       Basin and Range Section
              >-321B       Stockton Plateau Section
              >
              >Coastal Trough Humid Tayga Province
              >-135A       Cook Inlet Lowlands Section
              >-135B       Copper River Basin Section
              >
              >Colorado Plateau Semi-Desert Province
              >-313A       Grand Canyon Section
              >-313B       Navajo Canyonlands Section
              >-313C       Tonto Transition Section
              >-313D       Painted Desert Section
              >-313E       Central Rio Grande Intermontane Section
              >
              >Eastern Broadleaf Forest (Continental) Province
              >-222A       Ozark Highlands Section
              >-222C       Upper Gulf Coastal Plain Section
              >-222D       Interior Low Plateau, Shawnee Hills Section
              >-222E       Interior Low Plateau, Highland Rim Section
              >-222F       Interior Low Plateau, Bluegrass Section
              >-222G       Central Till Plains, Oak-Hickory Section
              >-222H       Central Till Plains, Beech-Maple Section
              >-222I       Erie and Ontario Lake Plain Section
              >-222J       South Central Great Lakes Section
              >-222K       Southwestern Great Lakes Morainal Section
              >-222L       North-Central U.S. Driftless and Escarpment Section
              >-222M       Minnesota and Northeastern Iowa, Morainal, Oak Savanna
              >              Section
              >-222N       Lake Agassiz, Aspen Parklands Section
              >
              >Eastern Broadleaf Forest (Oceanic) Province
              >-221A       Lower New England Section
              >-221B       Hudson Valley Section
              >-221C       Upper Atlantic Coastal Plain Section
              >-221D       Northern Appalachian Piedmont Section
              >-221E       Southern Unglaciated Allegheny Plateau Section
              >-221F       Western Glaciated Allegheny Plateau Section
              >-221H       Northern Cumberland Plateau Section
              >-221I       Southern Cumberland Mountains Section
              >-221J       Central Ridge and Valley Section
              >
              >Everglades Province
              >-411A       Everglades Section
              >
              >Great Plains Steppe Province
              >-332A       Northeastern Glaciated Plains Section
              >-332B       Western Glaciated Plains Section
              >-332C       Nebraska Sand Hills Section
              >-332D       North-Central Great Plains Section
              >-332E       South-Central Great Plains Section
              >
              >Great Plains Steppe and Shrub Province
              >-311A       Redbed Plains Section
              >
              >Great Plains-Palouse Dry Steppe Province
              >-331A       Palouse Prairie Section
              >-331B       Southern High Plains Section
              >-331C       Central High Tablelands Section
              >-331D       Northwestern Glaciated Plains Section
              >-331E       Northern Glaciated Plains Section
              >-331F       Northwestern Great Plains Section
              >-331G       Powder River Basin Section
              >-331H       Central High Plains Section
              >-331I       Arkansas Tablelands Section
              >-331J       Northern Rio Grande Basin Section
              >
              >Hawaiian Islands Province
              >M423A       Hawaiian Islands Section
              >
              >Intermountain Semi-Desert Province
              >-342A       Bighorn Basin Section
              >-342B       Northwestern Basin and Range Section
              >-342C       Owyhee Uplands Section
              >-342D       Snake River Basalts Section
              >-342E       Bear Lake Section
              >-342F       Central Basin and Hills Section
              >-342G       Green River Basin Section
              >-342H       High Lava Plains Section
              >-342I       Columbia Basin Section
              >
              >Intermountain Semi-Desert and Desert Province
              >-341A       Bonneville Basin Section
              >-341B       Northern Canyon Lands Section
              >-341C       Uinta Basin Section
              >-341D       Mono Section
              >-341E       Lahontan Basin Section
              >-341F       Southeastern Great Basin Section
              >-341G       Northeastern Great Basin Section
              >
              >Laurentian Mixed Forest Province
              >-212A       Aroostook Hills and Lowlands Section
              >-212B       Maine and New Brunswick Foothills and Eastern Lowlands
              >              Section
              >-212C       Fundy Coastal and Interior Section
              >-212D       Central Maine Coastal and Interior Section
              >-212E       St. Lawrence and Champlain Valley Section
              >-212F       Northern Glaciated Allegheny Plateau Section
              >-212G       Northern Unglaciated Allegheny Plateau Section
              >-212H       Northern Great Lakes Section
              >-212J       Southern Superior Uplands Section
              >-212K       Western Superior Section
              >-212L       Northern Superior Uplands Section
              >-212M       Northern Minnesota and Ontario Section
              >-212N       Northern Minnesota Draft and Lake Plains Section
              >
              >Lower Mississippi Riverine Forest Province
              >-234A       Mississippi Alluvial Basin Section
              >
              >Middle Rocky Mountain Steppe-Coniferous Forest-Alpine Meadow
              >  Province
              >M332A       Idaho Batholith Section
              >M332B       Bitterroot Valley Section
              >M332C       Rocky Mountain Front Section
              >M332D       Belt Mountains Section
              >M332E       Beaverhead Mountains Section
              >M332F       Challis Volcanics Section
              >M332G       Blue Mountains Section
              >
              >Nevada-Utah Mountains-Semi-Desert-Coniferous Forest-Alpine Meadow
              >  Province
              >M341A       Central Great Basin Mountains Section
              >M341B       Tavaputs Plateau Section
              >M341C       Utah High Plateaus and Mountains Section
              >
              >Northern Rocky Mountain Forest-Steppe-Coniferous Forest-Alpine
              >  Meadow Province
              >M333A       Okanogan Highlands Section
              >M333B       Flathead Valley Section
              >M333C       Northern Rockies Section
              >M333D       Bitterroot Mountains Section
              >
              >Ouachita Mixed Forest - Meadow Province
              >M231A       Ouachita Mountains Section
              >
              >Outer Coastal Plain Mixed Forest Province
              >-232A       Middle Atlantic Coastal Plain Section
              >-232B       Coastal Plains and Flatwoods, Lower Section
              >-232C       Atlantic Coastal Flatlands Section
              >-232D       Florida Coastal Lowlands (Western) Section
              >-232E       Louisiana Coast Prairies and Marshes Section
              >-232F       Coastal Plains and Flatwoods, Western Gulf Section
              >-232G       Florida Coastal Lowlands (Eastern) Section
              >
              >Ozark Broadleaf Forest - Meadow Province
              >M222A       Boston Mountains Section
              >
              >Pacific Coastal Mountains Forest-Meadow Province
              >M244A       Chugach-St. Elias Mountains Section
              >M244B       Lynn Canal Section
              >M244C       Boundary Range Section
              >
              >Pacific Gulf Coastal Forest-Meadow Province
              >M245A       Northern Gulf Section
              >M245B       Northern Alexander Archipelago Section
              >M245C       Southern Alexander Archipelago Section
              >
              >Pacific Lowland Mixed Forest Province
              >-242A       Willamette Valley and Puget Trough Section
              >
              >Prairie Parkland (Subtropical) Province
              >-255A       Cross Timbers and Prairie Section
              >-255B       Blackland Prairies Section
              >-255C       Oak Woods and Prairies Section
              >-255D       Central Gulf Prairies and Marshes Section
              >
              >Prairie Parkland (Temperate) Province
              >-251A       Red River Valley Section
              >-251B       North-Central Glaciated Plains Section
              >-251C       Central Dissected Till Plains Section
              >-251D       Central Till Plains Section
              >-251E       Osage Plains Section
              >-251F       Flint Hills Section
              >-251G       Central Loess Plains Section
              >
              >Puerto Rico Province
              >M411A       Dry-Humid Mountains Section
              >
              >Seward Peninsula Tundra-Meadow Province
              >M125A       Seward Mountains Section
              >
              >Sierran Steppe-Mixed Forest-Coniferous Forest-Alpine Meadow
              >  Province
              >M261A       Klamath Mountains Section
              >M261B       Northern California Coast Ranges Section
              >M261C       Northern California Interior Coast Ranges Section
              >M261D       Southern Cascades Section
              >M261E       Sierra Nevada Section
              >M261F       Sierra Nevada Foothills Section
              >M261G       Modoc Plateau Section
              >
              >Southeastern Mixed Forest Province
              >-231A       Southern Appalachian Piedmont Section
              >-231B       Coastal Plains, Middle Section
              >-231C       Southern Cumberland Plateau Section
              >-231D       Southern Ridge and Valley Section
              >-231E       Mid Coastal Plains, Western Section
              >-231F       Eastern Gulf Prairies and Marshes Section
              >-231G       Arkansas Valley Section
              >
              >Southern Rocky Mountain Steppe-Open Woodland-Coniferous Forest-
              >  Alpine Meadow Province
              >M331A       Yellowstone Highlands Section
              >M331B       Bighorn Mountains Section
              >M331D       Overthrust Mountains Section
              >M331E       Uinta Mountains Section
              >M331F       Southern Parks and Rocky Mountain Ranges Section
              >M331G       South-Central Highlands Section
              >M331H       North-Central Highlands and Rocky Mountain Section
              >M331I       Northern Parks and Ranges Section
              >M331J       Wind River Mountain Section
              >
              >Southwest Plateau and Plains Dry Steppe and Shrub Province
              >-315A       Pecos Valley Section
              >-315B       Texas High Plains Section
              >-315C       Rolling Plains Section
              >-315D       Edwards Plateau Section
              >-315E       Rio Grande Plain Section
              >-315F       Southern Gulf Prairies and Marshes Section
              >
              >Upper Yukon Tayga Province
              >-139A        Upper Yukon Flats Section
              >
              >Upper Yukon Tayga-Meadow Province
              >M139A        Upper Yukon Highlands Section
              >
              >Yukon Intermontane Plateaus Tayga Province
              >-131A        Upper Kobuk Valley Section
              >-131B        Yukon-Kuskokwim Bottomlands Section
              >
              >Yukon Intermontane Plateaus Tayga-Meadow Province
              >M131A        Nulato Hills Section
              >M131B        Kuskokwim Mountains Section
              >M131C        Nushagak-Lime Hills Section
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
      Attribute:
        Attribute_Label: Mcode
        Attribute_Definition:
          A code used to identify mountainous ecoregions with variations due to
          elevation.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: -
            Enumerated_Domain_Value_Definition: The ecoregion is not mountainous.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: M
            Enumerated_Domain_Value_Definition: The ecoregion is mountainous.
            Enumerated_Domain_Value_Definition_Source: USDA Forest Service
      Attribute:
        Attribute_Label: Pcode
        Attribute_Definition: A numeric code identifying the Province.
        Attribute_Definition_Source: National Atlas of the United States
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 121
            Range_Domain_Maximum: 423
      Attribute:
        Attribute_Label: Scode
        Attribute_Definition:
          A code identifying the section within the Province.  This is the last
          character of Ecocode.  This field is designed for cartographic
          production.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: A
            Range_Domain_Maximum: N
      Attribute:
        Attribute_Label: Key
        Attribute_Definition: The first three characters of the Section value.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: Adi
            Range_Domain_Maximum: Yuk
      Attribute:
        Attribute_Label: Fdigit
        Attribute_Definition:
          The last four digits of Ecocode.  This is a cartographic production
          field for labeling Sections.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 121A
            Range_Domain_Maximum: 423A
      Attribute:
        Attribute_Label: Mtext
        Attribute_Definition:
          The first four digits of Ecocode.  This code identifies mountainous and
          non-mountainous Provinces.
        Attribute_Definition_Source: USDA Forest Service
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -124
            Range_Domain_Maximum: M423

  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: Earth Science Information Center, U.S. Geological Survey
        Contact_Address:
          Address_Type: Mailing address
          Address: 507 National Center
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
        Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747)
        Contact_Voice_Telephone: 703-648-5920
        Contact_Instructions:
          In addition to the address above there are other ESIC offices throughout
          the country.  A full list of these offices is at
          <http://ask.usgs.gov/esic_index.html>.

    Distribution_Liability:
      Although these data have been processed successfully on a computer system at
      the U.S. Geological Survey, no warranty expressed or implied is made by the
      U.S. Geological Survey regarding the utility of the data on any other
      system, nor shall the act of distribution constitute any such warranty.  No
      responsibility is assumed by the U.S. Geological Survey in the use of these
      data.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: ESRI Shapefile
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio>
                Network_Resource_Name: <http://www.fs.fed.us/institute/ecoregions/eco_download.html>
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: SDTS
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio>
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: ARCE
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html?openChapters=chpbio#chpbio>
                Network_Resource_Name: <http://www.fs.fed.us/institute/ecoregions/eco_download.html>
      Fees: There is no charge for the map layer.

  Metadata_Reference_Information:
    Metadata_Date: 20060417
    Metadata_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Peg Rawson
          Contact_Organization: National Atlas of the United States
        Contact_Address:
          Address_Type: Mailing address
          Address: 12201 Sunrise Valley Drive
          Address: MS-561
          City: Reston
          State_or_Province: VA
          Postal_Code: 20192
        Contact_Voice_Telephone: 703-648-4183
        Contact_Electronic_Mail_Address: atlasmail@usgs.gov
    Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
    Metadata_Security_Information:
      Metadata_Security_Classification_System: None
      Metadata_Security_Classification: Unclassified
      Metadata_Security_Handling_Description: None