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U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Oregon / Washington

GIS Metadata


BLM OR Resource Area Boundaries Line

Frequently-asked questions:


What does this data set describe?

Title:
BLM OR Resource Area Boundaries Line

Abstract:
rab_arc: This theme shows line representation of jurisdictional Bureau of Land Management Resource Area perimeters for Oregon and Washington. The "shoreline" has been calculated to the 3 mile mark off the coastline indicating the extent of state and county jurisdiction.

Supplemental information:
Boundary definitions reference features or positions depicted in other GIS layers. The data from those layers is copied to create the Resource Area Boundary layer. Vertical integration with other layers will be maintained to ensure the most accurate representation.

  1. How should this data set be cited?

    OR/WA BLM, 20130125, BLM OR Resource Area Boundaries Line: OR BLM, Portland, OR.

  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -124.860827
    East: -116.463162
    North: 49.002439
    South: 41.992082

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar date: 20130125
    Currentness reference:
    publication date

  5. What is the general form of this data set?

    Geospatial data presentation form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect spatial reference:
      Oregon Washington

      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • String (171)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 2e-008. Longitudes are given to the nearest 2e-008. Latitude and longitude values are specified in Decimal Degrees.

      The horizontal datum used is D North American 1983.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.

  7. How does the data set describe geographic features?

    RAB_ARC
    OR BLM Resource Area Boundaries (Source: BLM)

    OBJECTID
    Internal feature number. (Source: Esri)
                      

    Sequential unique whole numbers that are automatically generated.

    DEF_FEATURE
    The physical or legal feature that defines the boundary according to the legal boundary description. (Source: BLM)
                      

    ValueDefinition
    BLM_ADMIN
    Bureau of Land Management administrative boundary
    COAST_3MILE
    Separating coastal water from territorial sea at 3-mile
    ELEVATION
    Line of common elevation
    FENCE
    Fence line
    FOREST_SERVICE_ADMIN
    Forest Service administrative boundaries
    HU
    Hydrologic unit divide
    JETTY
    Jetty
    JURISDICTION
    Surface jurisdiction boundary
    LAVA
    Edge of lava flow
    LEVEE
    Dyke or levee
    MARSH
    Edge of marsh, wetland, swamp, or bog
    MINERAL DISTURBANCE
    Edge of quarry, mine, gravel stockpile or other mineral surface disturbance area
    NLCS BOUNDARY
    Wilderness, Wild and Scenic River, Historic District or other NLCS designation boundary
    POINT-TO-POINT
    Boundary defined by a straight line segment between two points
    POWERLINE
    Power transmission line
    RIDGE
    Ridge
    RIGHT-OF-WAY
    A legal right of way forms boundary
    RIM
    Line generally follows a natural topographic barrier
    ROAD
    Road or primitive road - routes managed for use by low or high-clearance (4WD) vehicles, but not ATV's
    ROAD_OFFSET
    Boundary is offset from a road (not a consistent buffer)
    SHORELINE
    Lake, pond, reservoir, bay or ocean shoreline or meander line
    STREAM_LBANK
    Downstream left stream bank
    STREAM_RBANK
    Downstream right stream bank
    SUBDIVISION
    Public Land Survey System derivied aliquot (1/2's, 1/4's) parts and lots
    TRAIL
    Trail - routes managed for human-powered, stock or off-highway vehicle forms of travel
    UNKNOWN
    Defining feature is unknown
    VEGETATION
    Seeding boundary or other relatively permanent vegetation change
    WATERCOURSE
    Stream, river, ditch, canal or drainage centerline
    CLOSURE
    Closure extension.  Used to close small gaps
    COUNTY
    County boundary.

    ACCURACY_FT
    How close, in feet, the spatial GIS depiction is to the actual location on the ground. (Source: BLM)
                      

    COORD_SRC
    The actual source of the GIS coordinates for the line segments. (Source: BLM)
                      

    ValueDefinition
    CFF
    Digital Elevation Model (30 m or better accuracy) used for creation of contours
    DIS
    Lines generated to connect discontinuous features
    DLG
    Lines duplicated or buffered from (24K scale accuracy) USGS Digital Line Graphs
    DOQ
    Screen digitized linework over Digital Orthoquad backdrop
    DRG
    Screen digitized linework over Digital Raster Graphic backdrop
    GCD
    Lines snapped to Geographic Coordinate Database Points
    GPS
    Lines obtained from a Global Positioning System device
    IMG
    Linework derived from interpretation of satellite or other non-photographic imagery
    MAP
    Digitized linework from hardcopy map
    SRV
    Survey methods were used to create the linework (e.g. COGO)
    TIGER
    Tiger Data
    TRS
    Coordinates only given as a legal description (township, range, section)
    UNK
    Unknown coordinate source
    WOD
    WODDB Photogrammetric
    SOURCEL
    Source Layer from BLM GIS
    DEM
    Digital Elevation Model (30 m or better accuracy) used for creation of contours

    SOURCE_LYR
    The name of the feature class from which features are duplicated. (Source: BLM)
                      

    RAB_LNTYPE
    The "highest" level boundary that will be displayed when more than one type of boundary coincide. (Source: BLM)
                      

    ValueDefinition
    RAB
    RAB-Resource Area Boundary
    DOB
    DOB-District Boundary
    SOB
    SOB-OR/WA BLM State Office Boundary
    RABEXT
    RABEXT-Coast Extension for Resource Area Boundary
    DOBEXT
    DOBEXT-Coast Extension for District Boundary
    SOBOCEAN
    SOBOCEAN-3 mile offshore boundary for State Office Boundary

    SHAPE
    Feature geometry. (Source: Esri)
                      

    Coordinates defining the features.

    SHAPE.LEN
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Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

    • OR/WA BLM

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Corey Plank
    Bureau of Land Management, OR/WA State Office
    Lead Cartographer, 957.3 Geospatial Products Section
    P. O. Box 2965
    Portland, OR 97208-2965
    US

    (503)808-6145 (voice)
    (503)808-6190 (FAX)
    cplank@blm.gov
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Why was the data set created?

This data set is used for depicting the Resource Area Boundary on maps. Resource Area boundaries are dissolved to form District boundaries. Polygons created from the data are used for various analytical purposes, including clipping data and calculating acreage.

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How was the data set created?

  1. Where did the data come from?

    BLM GRA (source 1 of 7)

    Grazing Boundary.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines

    BLM WC (source 2 of 7)

    BLM OR/WA, 19870101, Hydrologic Features (Lines).

    Type of source media: onLine
    Source scale denominator: 240000
    Source contribution:
    Lines

    BLM NILS (source 3 of 7)

    OR/WA BLM, 19960901, National Integrated Lands System (Polygon, Node, Line): OR BLM, Portland, OR.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines and attributes

    BLM GCD (source 4 of 7)

    OR/WA BLM, 19890101, Geographic Coordinate Database Oregon (Point and Line): OR BLM, Portland, OR.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines

    BLM COB (source 5 of 7)

    DOI Mineral Management Service MMS, unknown, County Boundary (Line): MMS, Reston, VA.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines

    HUC (source 6 of 7)

    USGS, 19981221, National Hydrography Dataset (Polygon, Line, Node): OR BLM, Portland, OR.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines

    BLM GTRN (source 7 of 7)

    OR BLM, Ground Transportation (Line): OR BLM, Portland, OR.

    Type of source media: onLine
    Source scale denominator: 24000
    Source contribution:
    Lines

  2. What changes have been made?

    Date: 20100129 (change 1 of 4)
    BLM used the cited sources (see source information) to extract the desired line work and create the new geodatabase.

    Person responsible for change:
    Corey Plank
    Bureau of Land Management, OR/WA State Office
    Lead Cartographer, 957.3 Geographic Products Section
    (503)808-6145 (voice)
    (503)808-6190 (FAX)
    cplank@blm.gov

    Date: 20100129 (change 2 of 4)
    Attributes populated using BLM domains.

    Person responsible for change:
    Corey Plank
    Bureau of Land Management, OR/WA State Office
    Lead Cartographer, 957.3 Geospatial Products Section
    P. O. Box 2965
    Portland, OR 97208-2965
    US

    (503)808-6145 (voice)
    cplank@blm.gov
    Hours of Service: 8 AM - 5 PM
    Contact Instructions:
    call or email and leave a message

    Date: 20100903 (change 3 of 4)
    Added new line indicating administration by Prineville District within Vale District.

    Person responsible for change:
    Corey Plank
    Bureau of Land Management, OR/WA State Office
    Lead Cartographer, 957.3 Geospatial Products Section
    P. O. Box 2965
    Portland, OR 97208-2965
    US

    (503)808-6145 (voice)
    cplank@blm.gov
    Hours of Service: 8 AM - 5 PM
    Contact Instructions:
    call or email and leave a message

    Date: 20111006 (change 4 of 4)
    Corrections made to the Oregon/Washington border, reverted the Snake River border along Idaho to the previous DLG version, removed the Glendale/Grants Pass division, and removed the incorrect division between Baker and Central Oregon.

    Person responsible for change:
    Corey Plank
    Bureau of Land Management, Oregon State Office
    Lead Cartographer
    P.O. Box 2965
    Portland, OR 97208
    US

    (503) 808-6145 (voice)
    cplank@blm.gov

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How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

    Accuracy varies with the source layer.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This theme covers all public and private lands in Oregon and Washington.

  5. How consistent are the relationships among the observations, including topology?

    This theme is composed of arcs that connect only at their endpoints to form closed boundaries that coincide with the polygon boundaries of feature class RAB_POLY.

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How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access constraints: PUBLIC DATA: None, these data are considered public domain.
Use constraints:
These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived, and both scale and accuracy may vary across the data set. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office for which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This information may be updated without notification.

Distributor 1 of 1

  1. Who distributes the data set?

    Eric Hiebental
    Bureau of Land Management, Oregon State Office
    GIS Data Management Specialist
    PO Box 2965
    Portland, OR 97208
    US

    503-808-6565 (voice)
    503-808-6374 (FAX)
    ehiebentl@blm.gov

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, or for general or scientific purposes, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.

  4. How can I download or order the data?

    • Cost to order the data: Contact distributor for current fee structure.


    • Special instructions:

      Contact Distributor

  5. Is there some other way to get the data?

  6. What hardware or software do I need in order to use the data set?

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Who wrote the metadata?

Dates:
Last modified: 20080227
Last reviewed: 20130730

Metadata author:
Roger Mills
Bureau of Land Management, Oregon State Office
GIS Specialist
P.O. Box 2965
Portland, OR 97208
US

(503) 808-6340 (voice)
r2mills@blm.gov

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata(FGDC-STD-001-1998)

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