Identification_Information:
  Citation:
    Citation_Information:
      Originator: U.S. Geological Survey
      Publication_Date: Unpublished Material
      Title: Lakes and Reservoirs, Southwestern United States
      Geospatial_Data_Presentation_Form: vector digital data
      Publication_Information:
      Other_Citation_Details: Original data set may be obtained from www.nationalatlas.gov
      Online_Linkage: http://www.nationalatlas.gov
  Description:
    Abstract:
      This data set contains lake and reservoir boundaries. This data set is a subset of a national data set obtained from the National Atlas of the United States of America (nationalatlas.gov). The metadata for this data set is the original data set metadata; however, it was updated to reflect the changes that occured while creating this subset. This data set was used as part of U.S. Geological Survey Scientific Investigations Report 2006-5315, "Dissolved solids in basin-fill aquifers and streams in the Southwestern United States", by Anning and others (http://water.usgs.gov/nawqa/studies/mrb/salinity.html). 



      The original data set portrays the polygon and line water features of the United
      States, Puerto Rico, and the U.S. Virgin Islands.  The original data set was produced by joining the individual State hydrography layers from the 1:2,000,000-
      scale Digital Line Graph (DLG) data produced by the USGS.  The original data set
      was formerly distributed as Hydrography Features of the United States.
      The original data set is a revised version of the November 1999 data set.
    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 1:2,000,000-scale data.
      No responsibility is assumed by the U.S. Geological Survey in the use of
      these data.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: unknown
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: Irregular
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -120.947195
      East_Bounding_Coordinate: -104.890045
      North_Bounding_Coordinate: 43.346323
      South_Bounding_Coordinate: 31.343449
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Hydrography
      Theme_Keyword: Water
      Theme_Keyword: Lake
      Theme_Keyword: Reservoir
      Theme_Keyword: Pond
      Theme_Keyword: Shoreline
    Place:
      Place_Keyword: Arizona
      Place_Keyword: California
      Place_Keyword: Colorado
      Place_Keyword: Idaho
      Place_Keyword: Nevada
      Place_Keyword: New Mexico
      Place_Keyword: Utah
      Place_Keyword: Wyoming
  Access_Constraints: None
  Use_Constraints:
    None.  Acknowledgment of the National Atlas of the United States of America
    and (or) the U.S. Geological Survey would be appreciated in products derived
    from these data.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Woodley Chu
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: Mailing address
        Address: 561 National Center
        City: Reston
        State_or_Province: VA
        Postal_Code: 20192
      Contact_Voice_Telephone: 703-648-6375
      Contact_Electronic_Mail_Address: atlasmail@usgs.gov
  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
Data_Quality_Information:
  Logical_Consistency_Report:
    The data set was checked for topological consistency using the Arc/INFO
    command BUILD.  No other checks for logical consistency were performed on
    this data set.
  Completeness_Report:
    This data set includes water features for all 50 States, Puerto Rico, and
    the U.S. Virgin Islands.  Data completeness generally reflects the content
    of the original DLG files.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1995
          Title: 1:2,000,000-scale Digital Line Graphs - Hydrography
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 2000000
      Type_of_Source_Media: CD-ROM
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1972
            Ending_Date: 1994
        Source_Currentness_Reference: ground condition
      Source_Citation_Abbreviation: 2MILHY
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: Unknown
          Title: 1:100,000-scale USGS topographic sheets
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 100000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: Unknown
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: 1:100,000-scale base maps
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: Unknown
          Title: 1:250,000-scale USGS topographic sheets for Alaska
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 250000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: Unknown
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: 1:250,000-scale sheets
      Source_Contribution: Attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: Unknown
          Title: State base maps
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 500000
      Type_of_Source_Media: Paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: Unknown
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: State base maps
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 1998
          Title: Hydrography Features of the United States
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 2000000
      Type_of_Source_Media: Online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1998
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: ATLASHY98
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 199903
          Title: Hydrography Features of the United States
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 2000000
      Type_of_Source_Media: Online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1999
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: ATLASHY9903
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey
          Publication_Date: 199911
          Title: Streams and Waterbodies of the United States
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
      Source_Scale_Denominator: 2000000
      Type_of_Source_Media: Online
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1999
        Source_Currentness_Reference: Publication date
      Source_Citation_Abbreviation: ATLASHY9911
      Source_Contribution: Spatial and attribute information
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency
          Publication_Date: 1999
          Title: Hydrography
          Geospatial_Data_Presentation_Form: vector digital data
          Publication_Information:
            Publication_Place: Restron, Virginia
            Publisher: U.S. Geological Survey
          Online_Linkage: http://nhd.usgs.gov
      Type_of_Source_Media: digital data set
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: unknown
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: utahnhd
      Source_Contribution: The boundary for Utah Lake
    Process_Step:
      Process_Description:
        The 2MILHY data files were originally digitized by the National Mapping
        Division based on the sectional maps contained in 'The National Atlas of
        the United States of America' published by the USGS in 1970.  The
        1:2,000,000-scale Digital Line Graph (DLG) data were merged into a
        single national water features coverage.  Where necessary to effect the
        merge, alignment changes were made.  The names were taken from the USGS
        1:100,000-scale base maps.  For Alaska, the names were taken from the
        1:250,000-scale sheets.  State lines across water bodies were removed
        from the national coverage.  State attributes were assigned to the
        features.
      Source_Used_Citation_Abbreviation: 2MILHY
      Source_Used_Citation_Abbreviation: 1:100,000-scale base maps
      Source_Used_Citation_Abbreviation: 1:250,000-scale sheets
      Source_Used_Citation_Abbreviation: State base maps
      Process_Date: 1998
      Source_Produced_Citation_Abbreviation: ATLASHY98
    Process_Step:
      Process_Description:
        Some spatial features were added and corrected.  Some name attributes
        were added or corrected.  All occurrences of St. were changed to Saint.
        Extra spaces were removed from the attributes.  Water features for
        Puerto Rico and the U.S. Virgin Islands were added.
      Source_Used_Citation_Abbreviation: 1:100,000-scale base maps
      Source_Used_Citation_Abbreviation: State base maps
      Source_Used_Citation_Abbreviation: ATLASHY98
      Process_Date: 1999
      Source_Produced_Citation_Abbreviation: ATLASHY9903
    Process_Step:
      Process_Description: A minor adjustment was made to the shoreline in Galveston Bay, Texas.
      Source_Used_Citation_Abbreviation: ATLASHY9903
      Source_Used_Citation_Abbreviation: 1:100,000 scale base maps
      Process_Date: 1999
      Source_Produced_Citation_Abbreviation: ATLASHY9911
    Process_Step:
      Process_Description:
        The linear water feature attribute value, Intercoastal waterway, was
        changed to Intracoastal waterway.
      Source_Used_Citation_Abbreviation: ATLASHY9911
      Process_Date: 200212
    Process_Step:
      Process_Description: Data set was clipped to study area boundary.
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Jim Monical
            Contact_Organization: U.S. Geological Survey, Arizona Water Science Center
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 520 N. Park Avenue, Suite 221
            City: Tucson
            State_or_Province: Arizona
            Postal_Code: 86001
            Country: USA
          Contact_Voice_Telephone: (520)670-6671
          Contact_Electronic_Mail_Address: jmonical@usgs.gov
    Process_Step:
      Process_Description: Utah Lake was add using NHD data.
      Source_Used_Citation_Abbreviation: utahnhd
      Process_Date: 2006
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Marilyn Flynn
            Contact_Organization: U.S. Geological Survey, Arizona Water Science Center
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 2255 N. Gemini Drive
            City: Flagstaff
            State_or_Province: AZ
            Postal_Code: 86001
            Country: USA
          Contact_Voice_Telephone: (928)556-7184
          Contact_Electronic_Mail_Address: meflynn@usgs.gov
    Process_Step:
      Process_Description: Attribute data (Name) was added and populated.
      Process_Date: 2006
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Marilyn Flynn
            Contact_Organization: U.S. Geological Survey, Arizona Water Science Center
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 2255 N. Gemini Drive
            City: Flagstaff
            State_or_Province: AZ
            Postal_Code: 86001
            Country: USA
          Contact_Voice_Telephone: (928)556-7184
          Contact_Electronic_Mail_Address: meflynn@usgs.gov
Spatial_Data_Organization_Information:
  Indirect_Spatial_Reference:
    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.
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: G-polygon
      Point_and_Vector_Object_Count: 49
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Complete chain
      Point_and_Vector_Object_Count: 76919
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Albers Conical Equal Area
        Albers_Conical_Equal_Area:
          Standard_Parallel: 29.500000
          Standard_Parallel: 45.500000
          Longitude_of_Central_Meridian: -96.000000
          Latitude_of_Projection_Origin: 23.000000
          False_Easting: 0.000000
          False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.000599
          Ordinate_Resolution: 0.000599
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: Lakes
      Entity_Type_Definition: Areal water features in the United States.
      Entity_Type_Definition_Source: U.S. Geological Survey
    Attribute:
      Attribute_Label: OBJECTID
      Attribute_Definition: Internal feature number.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape
      Attribute_Definition: Feature geometry.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Coordinates defining the features.
    Attribute:
      Attribute_Label: Shape_Length
      Attribute_Definition: Length of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape_Area
      Attribute_Definition: Area of feature in internal units squared.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: Name
      Attribute_Definition: The name of the lake.
      Attribute_Definition_Source: U.S. Geological Survey
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://mapping.usgs.gov/esic/esic_index.html>.
  Resource_Description: Original data set may be obtained from www.nationalatlas.gov
  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
        Transfer_Size: 40.676
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html>
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media: CD_ROM
          Recording_Format: tar
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: SDTS
        Transfer_Size: 40.676
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: <http://nationalatlas.gov/atlasftp.html>
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media: CD_ROM
          Recording_Format: tar
    Fees:
      There is no charge for the online option.  For National Atlas files
      ordered on CD-ROM there is a base price of $45.00 per disc, a handling fee
      of $5.00, and a per-file charge based on file size.  The charge for files
      less than 10 megabytes in size is $1.00.  The charge for files that range
      in size from 10 to 150 megabytes is $7.50.  The charge for files of 150
      megabytes or larger is $15.00.  The charge is $7.50 for the Streams and
      Waterbodies of the United States data set.
    Ordering_Instructions:
      To order files on CD-ROM, please see
      <http://nationalatlas.gov/atlasftp.html#q12>.
Metadata_Reference_Information:
  Metadata_Date: 20071004
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Peg Rawson
        Contact_Organization: U.S. Geological Survey
      Contact_Address:
        Address_Type: Mailing address
        Address: 561 National Center
        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_Time_Convention: local time
  Metadata_Security_Information:
    Metadata_Security_Classification_System: None
    Metadata_Security_Classification: Unclassified
    Metadata_Security_Handling_Description: None
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI Metadata Profile