U.S. Geological Survey

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Metadata for LANDUSE2

 Table of Contents

Identification_Information
     Abstract
     Purpose
     Supplemental Information
Data_Quality_Information
Spatial_Data_Organization_Information
Entity_and_Attribute_Information
     Detailed Description
     Overview
Distribution_Information
Metadata_Reference_Section

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Identification_Information

Citation_Information
    Originator: Musser, Jonathan W.
    Publication_Date: 1996
    Title: Level-II Landuse and Landcover of Gerogia
    Edition: 1.0
             1.1 Datum change from 1927 to 1983 (North American Datum of 1983)
                 Data Re-projected using North American Datum (NAD83) - September 2000

    Series_Information
        Series_Name: Digital Data Series
    Publication_Information
        Publication_Place: Atlanta, GA
        Publisher: U.S. Geological Survey
    Online_Linkage: http://csat.er.usgs.gov/statewide/layers/landuse2.html
    Scale_Denominator: 250000

Description
    Abstract
    This is land use/land cover digital data collected by USGS and
    converted to Arc/Info. This data is useful for environmental
    assessment of land use patterns with respect to water quality
    analysis, growth management, and other types of environmental impact
    assessment.

    The original GIRAS format for each 1:250,000 quadrangle was converted
    to Arc/Info and paneled together to create a seamless land use
    coverage for the entire state.

    The dates for the original source material range from 1972-1976,
    so the use of this layer could be limited to historical change.


    Purpose
    The purpose of this data is to provide land use/land cover information
    for the state of Georgia.


Supplemental_Information
    Procedures_Used
    1. The GIRAS line files were obtained from EROS Data Center
    (edcftp.cr.usgs.gov) for all of the 1:250,000 quadrangles in Georgia.
    2. Each GIRAS file was unblocked using the unix command "dd if=infile
    of=outfile ibs=8000 cbs=80 conv=unblock".
    3. GIRASARC2 with UTM option was run on each quadrangle to create a
    land use/land cover (lu/lc) coverage and a neatline coverage.
    4. LABELERRORS was run on each lu/lc coverage and polygons with
    2 labels points were checked in Arcedit.  In most cases one of the
    label points was right on the line between 2 polygons, the other
    polygon having no label point.  The label on the line was moved
    into the polygon with no label point.
    5. The lu/lc coverages were built as polygon coverages and checked
    again for LABELERRORS.  In all cases polygons still existed with
    no label points.  CREATELABELS was then run with an id_base and
    IDEDIT was run to update the coverages.
    6. The polygons with a value of 0 for LUCODE (labels just created)
    were examined in Arcedit and if they were splinter polygons they
    were eliminated.  If they were not, then they were given an LUCODE
    value of "-1". Also all dangling arcs were eliminated at this time.
    7. The Atlanta quadrangle had a problem with a horizontal shift of
    the upper tics which skewed the coverage out of the neatbox, so
    a transform was done on it to put it back into the boundaries for
    the quadrangle.
    8. Each lu/lc coverage was then clipped by its neabox to eliminate
    areas that overlapped its boundaries.
    9. Each lu/lc coverage was built as a line coverage for edit purposes.
    10. Arcedit was started and the following commands were run on each
    lu/lc coverage:
    editfeature arc
    select rpoly# = 1 or lpoly# = 1  /* The outer boundary
    delete
    nodesnap closest 1
    weedtolerance 1
    grain 1
    intersectarcs all
    get (neatline coverage for quad)
    /* This places a new outer boundary into the coverage which will
    /* match neighboring quadrangles.  Now the arcs that fall short
    /* need to be extended to this new boundary.
    select dangle
    extend 100
    select dangle
    /* If there are still dangles then first they are checked to see
    /* if they are artifacts left over from the previous "get" and
    /* deleted.
    reselect length < 100 and fnode# = tnode#
    delete
    sel dangle
    /* If there are still dangles, then they are looked at individually
    /* and an "extend 140" is tried.  If that doesnt work, then an
    /* arc is manually added in to extend them to the neatline.
    save
    quit
    11. Each lu/lc coverage was built as a polygon and checked for
    LABELERRORS.  If errors existed, they were due to the old neatline
    intersecting the corner of a polygon rather than an edge.  Arcs
    were added to split the two polygons that were joined by this.
    12. Each lu/lc coverage was dissolved by lucode to eliminate internal
    neatlines.
    13. Now each lu/lc coverage in UTM zone 16 was MAPJOINed into a
    single coverage of the western part of the state and each lu/lc
    coverage in UTM zone 17 was MAPJOINed into a single coverage.
    14. These 2 coverages were then projected into an albers equal
    area conic projection with the following parameters:
    units meters
    datum NAD27
    spheriod CLARKE1866
    1st standard parallel: 29 30 00
    2nd standard parallel: 45 30 00
    central meridian: -83 30 00
    latitude of origin: 23 00 00
    false easting: 0
    false northing: 0
    15. These two albers coverages were clipped by the state outline from
    The Bureau of Censuss TIGER/Line Files.
    16. The two state coverages were mapjoined into a single coverage.
    17. LABELERRORS was run on this coverage which found polygons
    without labels.  These were fixed by running CREATELABELS, IDEDIT,
    and then they were fixed in Arcedit.
    18. The lu/lc coverage was dissolved by lucode to eliminate neatlines
    between quads.
    19. The items LEVEL-I and LEVEL-II were added to the coverage and
    values transfered from lucode in info:
    CALC LEVEL-II = LUCODE
    CALC LEVEL-I = LUCODE / 10
    20. The polygons with an attribute of "-1" were checked again to see
    if a matching polygon across a neatline could be found with an
    attribute.  If so, they were attributed.  If not, then an older
    version of lu/lc coverage was consulted.  This coverage was
    created in the 1980s and had unknown polygons attributed from
    other sources.  Edgematching was not done well on this older
    coverage so the need for this reprocessing.
    21. The lu/lc coverage was dissolved by #ALL to eliminate the
    boundaries between polygons with identical attributes which
    were created in step 20.
    22. A number of splinter polygons had been created around the edge
    of the state due to the CLIP so all polygons with an area of
    less than 100 meters square were ELIMINATEd.
    23. A complication developed in trying to plot this coverage, in that
    some of the polygons were very detailed and would not plot on a
    Calcomp Color Electrostatic Plotter, it was decided to intersect
    the land use with the TIGER/Line File for the Counties of Georgia.
    This eliminated the large size and convoluted extent of some of
    the polygons and allowed successful plotting.
    24. All tics were deleted and tics at 1 degree intervals were inserted.
    25. The final name was set at LANDUSE2 since this was a the LEVEL-II
    land use/land cover coverage and the coverage was documented with
    DOCUMENT v7.0.4.
    26. In preparation for publication to CD-ROM, The item CLASS, contain-
    ing Anderson classification descriptions, was added.
    27. Documentation was updated to reflect this change using
    DOCUMENT v7.0.4 on October 22, 1997.

    Revisions
    1.0
    1.1 Datum change from 1927 to 1983 (North American Datum of 1983)

    Reviews_Applied
    Coverage was checked for spatial completeness and attribute
    completeness.

    Colleague review June 20, 1996 by Keith McFadden and Jack Alhadeff.
    Digital data was reviewed with respect to positional accuracy, contextual
    accuracy, attribute accuracy, topological consistency, and metadata
    content.

    1. Some errors in document narrative were fixed.

    2. Approved by Georgia District Chief, Tim Hale, on June 21, 1996.



    Related_Spatial_and_Tabular_Data_Sets
    The tables landuse2.lv1 and landuse2.lv2 contain the values and
    definitions for land use/land cover classifications Level-I and
    Level-II respectively.


    Other_References_Cited
    Fegeas, Robin G., Claire, Robert W., Guptill, Stephen C., Anderson,
    K. Eric, and Hallam, Cheryl A., Land Use and Land Cover Digital
    Data, 1983, U.S. Geological Survey, Reston, VA.
    ______, 1990, TIGER/Line Precensus Files, 1990, U.S. Department of
    Commerce, Bureau of Census, Washington D.C.
    Anderson, J.R., Hardy, E.E., Roach, J.R., Witmer, R.E., 1976, A land
    use and land cover classification system for use with remote
    sensor data: U.S. Geological Survey Professional Paper 964, 28p.


    Notes
    None


Time_Period_of_Content
    Range_of_Dates/Times
    Beginning_Date: 1972
    Ending_Date: 1975
    Currentness_Reference
    Source data files date from 1972-1976.


Status
    Progress: Approved for release by Tim Hale, Georgia District Chief
    Maintenance_and_Update_Frequency
    None planned.


Spatial_Domain
    Bounding_Coordinates
    West_Bounding_Coordinate: -85.60520177
    East_Bounding_Coordinate: -80.73871462
    North_Bounding_Coordinate: 34.98459988
    South_Bounding_Coordinate: 30.33390296

Keywords
    Theme
        Theme_Keyword_Thesaurus: None
        Theme_Keyword:  landuse GIRAS Level II Level-II landcover Anderson
    Place
        Place_Keyword_Thesaurus: None
        Place_Keyword:  State of Georgia
    Stratum
        Stratum_Keyword_Thesaurus: None
        Stratum_Keyword:
    Temporal
        Temporal_Keyword_Thesaurus: None
        Temporal_Keyword:

Access_Constraints
N/A


Use_Constraints
The data has a time frame of 1972-1976.


Point_of_Contact: See Data_Set_Credit
U.S. Geological Survey National Mapping Program
U.S. Department of Commerce, Bureau of Census
U.S. Environmental Protection Agency (for metadata)


Security_Information
    Security_Classification_System: None
    Security_Classification:  UNCLASSIFIED
    Security_Handling_Description: None

Native_Data_Set_Environment: dgux UNIX, ARC/INFO version 7.0.4

Cross_Reference
    Originator: Fegeas, Robin. G, Claire, R.W., Guptill, S.C., Anderson, E.K., Hallam, C.A.
    Publication_Date: 1983
    Publication_Time:
    Title: Land Use and Land Cover Digital Data
    Edition:
    Geospatial_Data_Presentation_Form:
    Series_Information
        Series_Name:
        Issue_Identification:
    Publication_Information
        Publication_Place: Reston, VA
        Publisher: U.S. Geological Survey
    Other_Citation_Details: Circular 895-E
    Online_Linkage:
    Larger_Work_Citation:

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Data_Quality_Information

Attribute_Accuracy
    Attribute_Accuracy_Report: See Logical_Consistency_Report: Polygon topology present.

Completeness_Report
The whole state is complete.



Positional_Accuracy
    Horizontal_Positional_Accuracy
        Horizontal_Positional_Accuracy_Report:
        From "Land Use and Land Cover Digital Data" on the original
        digitization of the source data.

        All features are delineated by curved or straight lines that depict
        the actual boundaries of the areas (polygons) being described.  The
        minimum size of polygons depicting all Urban or Built-up Land
        (categories 11-17), Water (51-54), Confined Feeding Operations (23),
        and Strip Mines, Quarries, and Gravel Pits (75) is 4 hectare (ha).
        All other categories of land use and land cover have a minimum polygon
        size of 16 ha.  Those sizes also are considered the minimum sizes to
        which polygons are digitized.  In the Urban or Built-Up Land and Water
        categories, the minimum width of a feature to be shown is 200 m; that
        is, if a square with sides 200 m in length is delineated, the area
        will be 4 ha.  Although the minimum-width consideration precludes the
        delineation of very narrow and very long 4-ha polygons, triangles or
        other polygons are acceptable if the base of the triangle or minimum
        width of the polygon is 200 m in length and if the area of the polygon
        is 4 ha.  For categories other than Urban or Build-up Land and Water,
        the 16-ha minimum size for delineation requires a minimum width
        polygon of 400 m.  Line weight for delineating land use and land cover
        polygons and for neat lines is 0.10 mm at the production scale of
        1:250,000.





        Quantitative_Horizontal_Positional_Accuracy_Assessment:
            Horizontal_Positional_Accuracy_Value: 10-40 acres
            Horizontal_Positional_Accuracy_Explanation:  Resolution as reported

    Vertical_Positional_Accuracy
        Vertical_Positional_Accuracy_Report:
        N/A


Lineage: See Cloud_Cover
N/A


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Spatial_Data_Organization_Information

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information
    SDTS_Terms_Description
        SDTS_Point_and_Vector_Object_Type: Point
        Point_and_Vector_Object_Count: 52825
        SDTS_Point_and_Vector_Object_Type: String
        Point_and_Vector_Object_Count: 122643
        SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains'
        Point_and_Vector_Object_Count:  52826

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Spatial_Reference_Information

Horizontal_Coordinate_System_Definition
    Planar
        Map_Projection:
        Map_Projection_Name:  ALBERS
        Longitude_of_Central_Meridian: -83.5
        Latitude_of_Projection_Origin: 23
        Latitude_of_First_Standard_Parallel: 29.5
        Latitude_of_Second_Standard_Parallel: 45.5
        False_Easting:  0.00000
        False_Northing:  0.00000
    Geodetic Model
        Horizontal_Datum_Name: North American Datum of 1983
        Ellipsoid_Name:  GRS 80
        Semi-major_Axis: 6,378,206.4
        Denominator_of_Flattening: 294.98

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Entity_and_Attribute_Information

Detailed_Description
    Entity_Type
    Entity_Type_Label: LANDUSE2.PAT
    Entity_Type_Definition: Polygon attribute table
    Entity_Type_Definition_Source: U.S. Geological Survey
    Attribute:
        Attribute_Label: -
        Attribute_Definition: Polygon attribute table
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: -
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: AREA
        Attribute_Definition: Area of poly/region in square coverage units
        Attribute_Definition_Source: Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: Positive real numbers
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: PERIMETER
        Attribute_Definition: Perimeter of poly/region in coverage units
        Attribute_Definition_Source: Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: Positive real numbers
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LANDUSE2#
        Attribute_Definition: Internal feature number
        Attribute_Definition_Source: Computed
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: Sequential unique positive integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LANDUSE2-ID
        Attribute_Definition: User-assigned feature number
        Attribute_Definition_Source: User-defined
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: Integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LEVEL-I
        Attribute_Definition: Level I landuse value
        Attribute_Definition_Source: U.S. Geological Survey, National Mapping Division
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 1-7
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LEVEL-II
        Attribute_Definition: Level II Landuse code
        Attribute_Definition_Source: U.S. Geological Survey, National Mapping Division
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 11-77
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: STATECTY
        Attribute_Definition: State and county FIPS code
        Attribute_Definition_Source: U.S. Census Bureau
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 13001-13321
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: CNTYNAME
        Attribute_Definition: Name of county
        Attribute_Definition_Source: U.S. Census Bureau
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: character
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: FIPS:ST
        Attribute_Definition: State part of FIPS code
        Attribute_Definition_Source: U.S. Census Bureau
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 13
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: FIPS:CO
        Attribute_Definition: County part of FIPS code
        Attribute_Definition_Source: U.S. Census Bureau
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 1-321
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: FIPS
        Attribute_Definition: Complete FIPS code
        Attribute_Definition_Source: U.S. Census Bureau
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 13001-13321
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: CLASS
        Attribute_Definition: Anderson Classification (Level-II)
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 2 digit integer
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Entity_Type
    Entity_Type_Label: LANDUSE2.LV1
    Entity_Type_Definition: Description of Level-I land use/land cover codes
    Entity_Type_Definition_Source: U.S. Geological Survey
    Attribute:
        Attribute_Label: -
        Attribute_Definition: Description of Level-I land use/land cover codes
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: -
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LEVEL-I
        Attribute_Definition: Level-I landu use/ land cover code
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 1-7
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: DESCRIPTION
        Attribute_Definition: Description of Level-I Code
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: character
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Entity_Type
    Entity_Type_Label: LANDUSE2.LV2
    Entity_Type_Definition: Description of Level-II land use/land cover codes
    Entity_Type_Definition_Source: U.S. Geological Survey
    Attribute:
        Attribute_Label: -
        Attribute_Definition: Description of Level-II land use/land cover codes
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: -
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: LEVEL-II
        Attribute_Definition: Level-II land use/land cover code
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: 11-76
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:
    Attribute:
        Attribute_Label: DESCRIPTION
        Attribute_Definition: Description of Level-II code
        Attribute_Definition_Source: U.S. Geological Survey
        Attribute_Domain_Values
            Enumerated_Domain
                Enumerated_Domain_Value: character
                Enumerated_Domain_Value_Definition
                Enumerated_Domain_Value_Definition_Source:

 Overview_Description
    Entity_and_Attribute_Overview
    The primary attributes in this data set is the land use and land cover
    classification system for use with remote sensor data.  The two
    attributes associated with this are LEVEL-I and LEVEL-II.  LEVEL-I
    is the broad classification of land use which is broken up into more
    specific categories with LEVEL-II.  The following table describes the
    values that are found in Georgia and the area in square kilometers of
    each category.  Note that the areas in LEVEL-II may not add up to the
    areas in LEVEL-I due to rounding (Anderson, J.R., 1976)


    LEVEL-I  LEVEL-II  DESCRIPTION                          AREA (sq km)
    --------------------------------------------------------------------
    1                Urban or Built-up Land                     5,207
    11        Residential                              3,397
    12        Commercial and Services                    737
    13        Industrial                                 196
    14        Transportation, Communications, and        461
    Services
    15        Industrial and Commercial Complexes         80
    16        Mixed Urban or Built-up Land                83
    17        Other Urban or Built-up Land               250
    2                Agricultural Land                         41,410
    21        Cropland and Pasture                    40,516
    22        Orchards, Groves, Vineyards, Nurseries,    791
    and Ornamental Horticultural Areas
    23        Confined Feeding Operations                 77
    24        Other Agricultural Areas                    26
    3                Rangeland                                    236
    31        Herbaceous Rangeland                        23
    32        Shrub-Brushland Rangeland                  212
    33        Mixed Rangeland                              1
    4                Forest Land                               91,201
    41        Deciduous Forest Land                   13,004
    42        Evergreen Forest Land                   46,311
    43        Mixed Forest Land                       31,885
    5                Water                                      1,948
    51        Streams and Canals                         576
    52        Lakes                                       63
    53        Reservoirs                               1,092
    54        Bays and Estuaries                         217
    6                Wetland                                   12,035
    61        Forested Wetland                        10,143
    62        Nonforested Wetland                      1,893
    7                Barren Land                                  702
    72        Beaches                                     26
    73        Sandy Areas Other than Beaches               4
    74        Bare Exposed Rock                            1
    75        Strip Mines, Quarries, and Gravel Pits     158
    76        Transitional Areas                         512


    To reduce the size of some polygons which were causing problems during
    plotting, the land use/land cover data was intersected with the
    counties from the Bureau of Census.  The state and county FIPS
    codes in items STATECTY, FIPS:ST, and FIPS:CO were retained.  In
    addition the county name was retained in the field CNTYNAME.  With
    these fields, countywide pieces of the land use/land cover can be
    easily reselected out of the coverage.



    Entity_and_Attribute_Detail_Citation: Not Available

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Distribution_Information

Distributor
    Contact_Person_Primary
        Contact_Person: Jonathan W. Musser
        Contact_Organization: U.S. Geological Survey
    Contact_Position: Hydrologist

    Contact_Address
        Address_Type: mailing address
        Address: U.S. Geological Survey
                 3039 Amwiler Road
                 Suite 130
        City: Atlanta
        State_or_Province: GA
        Postal_Code: 30360-2824
        Country: USA

    Contact_Facsimile_Telephone: 770-903-9199
    Contact_Electronic_Mail_Address: jwmusser@usgs.gov


Standard_Order_Process
    Digital_Form
        Digital_Transfer_Information
        Format_Name: ARCE ARC/INFO Export format
        File_Decompression_Technique: gzip

        Format_Name: SDTS Spatial Data Transfer Standards (FIPS 173)
        File_Decompression_Technique: gzip & tar
        Digital_Transfer_Option
        Online_Option
        Computer_Contact_Information
        Network_Address
        Network_Resource_Name: http://csat.er.usgs.gov/statewide/layers/landuse2.html



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Metadata_Reference_Section

Metadata_Date: 19971219
Metadata_Contact: dmleckie
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:  19940608
Metadata_Time_Convention:  Local Time
Metadata_Security_Information:
    Metadata_Security_Classification_System:  None
    Metadata_Security_Classification:  UNCLASSIFIED
    Metadata_Security_Handling_Description:  None

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Last modified: 2008-03-20