GIS Metadata

BLM OR Management Ownership Dissolve Polygon

Frequently-asked questions:

What does this data set describe?

BLM OR Management Ownership Dissolve Polygon

ownership_poly_dissolve: This theme portrays information related to surface jurisdiction of lands located in the states of Oregon and Washington.

Supplemental information:
Bureau of Land Management (BLM) ,A published revision of the Department Manual's Part 305: Departmental Science Effects, Chapter 3: Integrity of Scientific and Scholarly Activities (305 DM 3), effective December 16, 2014, is available online at http://elips.doi.gov/ELIPS/DocView.aspx?id=4056. Scholarly information considered in Departmental decision making must be robust, of the highest quality, and the result of as rigorous scientific and scholarly processes as can be achieved. Most importantly, it must be trustworthy. This policy helps us to achieve that standard (http://www.doi.gov/scientificintegrity/index.cfm)

  1. How should this data set be cited?

    U.S. Department of Interior, Bureau of Land Management (BLM), 20180109, BLM OR Management Ownership Dissolve Polygon.

  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -124.785528
    East: -116.463565
    North: 49.002430
    South: 41.624852

  3. What does it look like?

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

    Beginning date: 20091001
    Ending date: unknown
    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?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • GT-polygon composed of chains (32966)

    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 2.00000016548074e-008. Longitudes are given to the nearest 2.00000016548074e-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?

    Ownership_poly, Federal
    Attributes relating to the responsible owner or manager of a parcel in the state of Oregon (Source: BLM)

    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    The entity that administers the surface rights (Source: BLM)

    Bureau of Indian Affairs
    Bureau of Land Management
    Bonneville Power Administration
    Bureau of Reclamation
    Corps of Engineers
    U.S. Dept. of Defense (except Corps of Engineers)
    U.S. Dept. of Energy
    Federal Aviation Administration
    U.S. Fish and Wildlife Service
    General Services Administration
    Local Government
    National Park Service
    Private Individual or Company
    Lands Managed by Private Industry
    Private Non-Industrial Owner
    Private Urban Lands
    State Agency
    State Dept. of Forestry
    Division of State Lands
    State Dept. of Parks and Recreation
    State Dept. of Fish and Wildlife
    U.S. Coast Guard
    U.S. Dept. of Agriculture (except Forest Service)
    U.S. Forest Service

    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    Feature geometry. (Source: ESRI)

    Feature geometry. (Source: ESRI)

    Entity and attribute overview:
    Attributes are provided that give basic information about source, type, and accuracy of the line data. More information may be found in the data standard if available: https://www.blm.gov/or/gis/data.php
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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)

    • U.S. Department of Interior, Bureau of Land Management (BLM)

  2. Who also contributed to the data set?

    OR BLM

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

    Frank Lahm
    Bureau of Land Management
    P.O. Box 2965
    Portland, OR97208

    (503) 808-6428 (voice)
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Why was the data set created?

Land use planning, watershed analysis, project planning.

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How was the data set created?

  1. Where did the data come from?

    Klickitat (source 1 of 15)

    Klickitat County, Washington, Klickitat.

    Type of source media: onLine

    YakamaCog83 (source 2 of 15)

    Yakima County, Washington, YakamaCog83.

    Type of source media: None

    controlpoints (source 3 of 15)

    Thurston County, Washington, controlpoints.

    Type of source media: onLine

    Snohomish (source 4 of 15)

    Snohomish County, Washington, Snohomish.

    Type of source media: onLine

    WODDB (source 5 of 15)

    OR/WA BLM, Western Oregon Digital Data Base.

    Type of source media: None
    Source scale denominator: 24000
    Source contribution:
    Western Oregon Digital Database data is Points, lines, and attributes; supplied for Oregon State by the Oregon State Office Geographic Sciences branch, Spatial Products section.

    LewisCo (source 6 of 15)

    Lewis County, Washington, LewisCo.

    Type of source media: onLine

    cadastre_thenrit7505517 (source 7 of 15)

    Pierce County, Washington, cadastre_thenrit7505517.

    Type of source media: onLine

    FranklinCounty (source 8 of 15)

    Franklin County, Washington, FranklinCounty.

    Type of source media: onLine

    FranklinCountyTwpId (source 9 of 15)

    Franklin County, Washington, FranklinCountyTwpId.

    Type of source media: onLine

    DCParcels9_8_06 (source 10 of 15)

    Douglas County, Washington, DCParcels9_8_06.

    Type of source media: onLine

    Whatcom (source 11 of 15)

    Whatcom County, Whatcom.

    Type of source media: onLine

    GCDB (source 12 of 15)

    OR/WA BLM, unknown, Geographic Coordinate Database: OR BLM, Portland, OR.

    Type of source media: CD-ROM
    Source scale denominator: 12000
    Source contribution:
    Lines, points, and attributes; supplied for the State of Oregon by the BLM Oregon State Office.

    plss_coverage (source 13 of 15)

    Clallam County, Washington, plss_coverage.

    Type of source media: onLine

    GHC_PLS (source 14 of 15)

    Grays Harbor County, Washington, GHC_PLS.

    Type of source media: onLine

    Cc_gps points (source 15 of 15)

    Clallam County, Washington, Cc_gps points.

    Type of source media: onLine

  2. What changes have been made?

    Date: unknown (change 1 of 3)
    Data was assembled using information from the Oregon State Office and from various federal, state, and county agencies. When data from multiple sources covered the same area, the data was then assessed for best quality content and accuracy. Priorities were determined for acceptance. Data with positional accuracy statements were first choice (GCDB data). Data with accuracy statements in the metadata were second, and data without accuracy statements was the third priority for acceptance. The data was then combined with and edge matched to previously accepted data and adjusted to conform to the topology rules.

    Person responsible for change:
    Tim Keck
    Bureau of Land Management, OR/WA State Office
    Land Surveyor, 957.3 GCDB Section
    P. O. Box 2965
    Portland, OR97208-2965

    (503) 808-6164 (voice)

    Data sources used in this process:
    • WODDB
    • GCDB

    Date: 20091023 (change 2 of 3)
    Washington state data extracted from equivalent WA_LLI theme (WA_Ownership_poly). Any overlaps with existing Oregon data in OWNERSHIP_POLY were resolved by deleting features from OWNERSHIP_POLY. Field VERSION_NAME of the Washington data was filled with the value "InitialLoad". Fields matching OWNERSHIP_POLY were added to the Washington data and the values were translated from the corresponding Washington data fields using crosswalk tables approved by data steward Tim Keck. Washington data loaded into OWNERSHIP_POLY. Edge-match of data along the Oregon and Washington border was completed by Erin Frostad using GCDB points.

    Person responsible for change:
    Steve Salas
    Bureau of Land Management, Oregon State Office
    GIS Specialist
    P.O. Box 2965
    Portland, OR97208

    503 808-6416 (voice)

    Date: 20091027 (change 3 of 3)
    Contiguous parcels were dissolved by common values described in the Property_Status field to form single part polygons.

    Person responsible for change:
    Steve Salas
    Bureau of Land Management, Oregon State Office
    GIS Specialist
    P.O. Box 2965
    Portland, OR97208

    503 808-6416 (voice)

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

  1. How well have the observations been checked?

    Attributes were compared with the source material for accuracy. Discrepancies were cross checked with other sources to determine and confirm the correct attribute.

  2. How accurate are the geographic locations?

    Source Data derived from the BLM addresses positional accuracy by referring to the error ellipses from the Geographic coordinate data base (GCDB). Other Source data derived from other Federal, State, and county sources as a rule did not address positional accuracy. Accuracy was then determined from metadata statements if available.

  3. How accurate are the heights or depths?

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

    This theme covers the states of Oregon and Washington.

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

    The Ownership_Poly_Dissolve contains no overlapping or splintered polygons.

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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, OR97208

    503-808-6340 (voice)
    503-808-6419 (FAX)
    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?

    • Availability in digital form:

    • Data format:
      in format Arc GIS (version Feature Class) Winzip

    • 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?

    Arc GIS, Winzip

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Who wrote the metadata?

Last modified: 20130403
Last reviewed: 20170320

Metadata author:
Roger Mills
Bureau of Land Management, Oregon State Office
GIS Specialist
P.O. Box 2965
Portland, OR97208

(503) 808-6340 (voice)
(503) 808-6419 (FAX)
Hours of Service: 8:00-4:00
Contact Instructions:

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

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