. .

U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Oregon / Washington

GIS Metadata


BLM OR County Boundaries Polygon

Frequently-asked questions:


What does this data set describe?

Title:
BLM OR County Boundaries Polygon

Abstract:
COB_POLY: This theme shows the jurisdictional and cartographic county areas for Oregon and Washington. The POCA layer is an integrated set of geographic- referencing data covering the state of Washington. It is derived from land surveys, DNR orthophotos, USGS 7.5' quadrangles, and DNR tract books.

Supplemental information:
BLM (Bureau of Land Management), CFF (Cartographic Feature File), DLG (Digital Line Graph), DNR (Washington Department of Natural Resources), DRG (Digital Raster Graphic), FIPS (Federal Information Processing Standard), GCD (Geographic Coordinate Database layer), GCDB (Geographic Coordinate Data Base), HYD (WODDB Hydrologic Features layer), LLI (Landlines layer), USFS (U.S. Forest Service), USGS (U.S. Geological Survey), WODDB (Western Oregon Digital Data Base)

  1. How should this data set be cited?

    OR/WA BLM, 20141028, BLM OR County Boundaries Polygon: 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: 20141028
    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):
      • GT-polygon composed of chains (75)

    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 1.0000000000000001e-009. Longitudes are given to the nearest 1.0000000000000001e-009. 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?

    County polygons
    Attributes for counties (Source: OR/WA BLM)

    objectid
    Internal feature number. (Source: ESRI)
                      

    Sequential unique whole numbers that are automatically generated.

    cobcode
    The Federal Information Processing Standard (FIPS) code for the county. (Source: BLM)
                      

    Formal codeset
    Codeset name:FIPS
    Codeset source:http://www.itl.nist.gov/fipspubs/co-codes/or.txt

    county_name
    The name of the county (Source: OR/WA BLM)
                      

    shape
    Feature geometry. (Source: ESRI)
                      

    Coordinates defining the features.

    ORIG_FID
    Original Federal ID code.

    SHAPE.AREA
    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
    Lead Cartographer
    P.O. Box 2965
    Portland, OR 97201
    US

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

Resource management planning and mapping

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How was the data set created?

  1. Where did the data come from?

    BLM HYD (source 1 of 5)

    BLM OR/WA State Office, 19850101, Hydrology: OR BLM, Portland, OR.

    Type of source media: hardcopyPhoto
    Source scale denominator: 4800
    Source contribution:
    Lines

    BLM LLI (source 2 of 5)

    OR/WA BLM, 19960901, Landlines (Polygon, Node, Line): OR BLM, Portland, OR.

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

    BLM GCD (source 3 of 5)

    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

    USGS BD (source 4 of 5)

    USGS, 19981221, Boundaries, DLG Oregon (Polygon, Line, Node): OR BLM, Portland, OR.

    Type of source media: None
    Source contribution:
    Lines

    USFS BD_CFF (source 5 of 5)

    OR BLM, Boundaries, CFF (Polygon, Line, Node): OR BLM, Portland, OR.

    Type of source media: None
    Source contribution:
    Lines

  2. What changes have been made?

    Date: unknown (change 1 of 6)
    Coverage reprojected to Geographic projection with a datum of NAD83

    Person responsible for change:
    Lori Davies
    Titan Systems
    P.O. Box 2965
    Portland, OR 97208
    US

    503-808-6623 (voice)
    503-808-6318 (FAX)
    Lori_Davies@or.blm.gov
    Hours of Service: Monday-Friday, 8am-5pm, Pacific Standard Time ------------------------------------------------------------------------

    Date: 20010801 (change 2 of 6)
    BLM contractor used the cited sources( see source information) to extract the desired line work and create the new coverage. This was accomplished in ARCEDIT using the SELECT & PUT commands. The coverage was then cleaned, built for topology and projected to Lambert Conformal Conic. All line work was ultimately snapped to GCDB points where available.

    Person responsible for change:
    Don Hsiao
    ORSO BLM/Titan Systems
    503-808-6534 (voice)
    dhsiao@or.blm.gov

    Date: 20050101 (change 3 of 6)
    Original coverage version of the county boundary dataset was loaded into the Oregon Washington Corporate SDE instance as two separate feature classes (Line & Polygon). This SDE data is now considered the master version.

    Person responsible for change:
    Bryant Mecklem
    OR / WA BLM
    SDE Admin
    503.808.6506 (voice)
    bmecklem@or.blm.gov

    Date: 20130123 (change 4 of 6)
    Updated polygon features to match changes in arc feature class.

    Person responsible for change:
    Corey Plank
    USDI Bureau of Land Management
    Lead Cartographer
    PO Box 2965
    Portland, OR 97208-2965

    503-808-6145 (voice)
    503-808-6190 (FAX)
    cplank@blm.gov

    Date: 20130315 (change 5 of 6)
    Updates to Domain DEF_FEATURE and COOR_SRC.

    Person responsible for change:
    Roger Mills
    Bureau of Land Management
    GIS Spec.
    P.O. Box 2965
    Portland, OR 97208
    US

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

    Date: 20141028 (change 6 of 6)
    Changes to Washington and Multnomah county boundaries. Linework updated to current PLSS data.

    Person responsible for change:
    Corey Plank
    Bureau of Land Management
    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?

    Line accuracy is stored in the line attribute RELIABILITY, where codes are assigned based on the line source. See Entity and Attribute Information section for the breakdown used.

  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 was built for polygon topology. Numerous know node errors exist.

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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 from 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 data may be updated by the BLM without notification.

Distributor 1 of 1

  1. Who distributes the data set?

    Eric Hiebenthal
    Bureau of Land Management
    GIS Data Management Specialist
    P.O Box 2965
    Portland, OR 97208
    US

    503-808-6565 (voice)
    503-808-6419 (FAX)
    ehiebent@blm.gov
    Contact Instructions:
    contact instructions

  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.


    • Special instructions:

      Data are only available through the Oregon/Washington State office of the Bureau of Land Management.

  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: 20130123
Last reviewed: 20141028

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)
(503) 808-6419 (FAX)
r2mills@blm.gov
Hours of Service: 8:00-4:00
Contact Instructions:
None

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

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