haopca - Historical herd aread for wild horse and burro

Frequently-asked questions:


What does this data set describe?

Title:
haopca - Historical herd aread for wild horse and burro

Abstract:
Historical herd areas for wild horse and burro.  A "Herd Area" is defeind by the "Wild and Free-Roaming Horse and Burro Program Guidance, January 1983" as "The geographic area identified as having been used by a herd as its yearlong habitat in 1971"

Supplemental information:
This data was merged into the National Data set in 2004, and then extracted for maintenance in 2005.  Herd  Areas extending onto USFS Herd Area Territories were pulled during the merge with National.  Some of these USFS Herd Areas extend onto public lands.  During the National  merge, many Herd Areas were also consolidated into a single larger Herd Area  The Data has been reviewed and updated (name changes and PLSS allignment) in 2006.

  1. How should this data set be cited?

    U.S. Bureau of Land Management, 2000/0101, haopca - Historical herd aread for wild horse and burro : U.S. Bureau of Land Management, California State Office, Sacramento, CA.

    Online links:
  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -121.901481
    East: -113.722496
    North: 42.003314
    South: 32.802531

  3. What does it look like?

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

    Calendar date: 7/2006
    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):
      • Complete chain (185)
      • Label point (33)
      • GT-polygon composed of chains (33)
      • Point (62)

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

      The map projection used is Transverse Mercator.

      Projection parameters:
      Scale factor at central meridian: 0.999400
      Longitude of central meridian: -119.000000
      Latitude of projection origin: 37.000000
      False easting: 500000.000000
      False northing: 1500000.000000

      Planar coordinates are encoded using coordinate pair.
      Abscissae (x-coordinates) are specified to the nearest 0.002048.
      Ordinates (y-coordinates) are specified to the nearest 0.002048.
      Planar coordinates are specified in meters.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    haopca.pat
    FID
    Internal feature number.
    (Source:
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
    (Source:
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
    (Source:
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
    (Source:
    ESRI
    )

    Positive real numbers that are automatically generated.

    HAOPCA#
    Internal feature number.
    (Source:
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    HAOPCA-ID
    User-defined feature number.
    (Source:
    ESRI
    )

    Whole numbers that are automatically generated.

    HA_NAME
    The name of the herd area.
    (Source:
    BLM
    )

    HA_NUMBER
    Herd area number
    (Source:
    BLM
    )

    Sequential unique whole numbers that are automatically generated.

    AGENCY
    The agency in administrative control of the lands the herd area occurs.
    (Source:
    BLM
    )

    ANIMAL_TYPE
    Animals in the herd area.
    (Source:
    BLM
    )

    ACRES
    Total area of the herd area in arcres.
    (Source:
    BLM
    )

    STATE
    The state(s) in which the herd area occurs.
    (Source:
    BLM
    )

    sagegrs.pat
    FID
    Internal feature number.
    (Source:
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
    (Source:
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
    (Source:
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
    (Source:
    ESRI
    )

    Positive real numbers that are automatically generated.

    SAGEGRS#
    Internal feature number.
    (Source:
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    SAGEGRS-ID
    User-defined feature number.
    (Source:
    ESRI
    )

    PMU_NAME
    STATE
    Entity and attribute overview:
    (Define tables, non-system table columns, valid values,)
    (value definitions, and data sources.)
    

    Entity and attribute detail citation:
    None
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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)


  2. Who also contributed to the data set?

    These data developed and maintained by the U.S. Bureau of Land Management,
    Insert your Office Name & Address Here
    

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

    Bob Milton
    U.S. Bureau of Land Management, California State Office
    GIS Coordinator
    2800 Cottage Way
    Sacramento, CA 95825
    USA

    916 978-4562 (voice)
    916 978-4580 (FAX)
    bmilton@blm.gov
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Why was the data set created?

This data set is to be used to illustrate the hisorical herd areas of the wild horse and burro herds.

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How was the data set created?

  1. Where did the data come from?

    None (source 1 of 1)

    Bureau of Land Management, yyyymmdd, Hand drawn notes on Field Office maps. .

    Type of source media: paper map
    Source scale denominator: 100000
    Source contribution:
    raw data, attributes

  2. What changes have been made?

    Date: 20020901 (change 1 of 7)
    The original data set was created in 1997.  It was subsequently modified to the current data set in
    2002 to incorporate Field Office level review.
    

    Person responsible for change:
    GIS Manager
    Bureau of Land Management
    2800 Cottage Way
    Sacramento, CA 95825
    USA

    916-978-4652 (voice)

    Data sources used in this process:
    • ftp://ftp.blm.gov/pub/CA/gis/ca_sync/covers/

    Date: 20040402 (change 2 of 7)
    Metadata template imported and updated for the data set.

    (change 3 of 7)
    Dataset copied.

    Data sources used in this process:
    • \\corp\blm\ca\cd\pub\gisimage\gis\master\basic\range_mgmt\haopca

    Date: 2005 (change 4 of 7)
    Integrated National Data Set.  USFS Herd Territories, many of which extend onto public lands, were dropped. and many Herd Areas were consolidated into single larger Herd Areas.  The justification for these changes are largely unknown, but appear to have been coordinated with the local Field Offices..

    Person responsible for change:
    Mark O'Brian
    NVSO
    GIS Manager

    (change 5 of 7)
    National Data Set was clipped to California's extent for maintenance

    Person responsible for change:
    Mark O'Brian
    NVSO
    Gis Manager

    Date: 6/2005 (change 6 of 7)
    Californias Herd Areas were sent out fori review by all CA Field Offices

    Date: 7/2006 (change 7 of 7)
    CA Field Office review.  One name change and vertically integrated with PLSS

    Person responsible for change:
    Clemens Arrasmith
    CASO
    Gs Specialist

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

  1. How well have the observations been checked?

    Attribute accuracy was evaluated through visual inspection on screen and through the creation of paper products.

  2. How accurate are the geographic locations?

    The coordinates are accurate for use at a scale of 1:100,000 or smaller.  This accuracy is based on visual inspection, use, and consideration of the source materials.

  3. How accurate are the heights or depths?

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

    There are no intentional generalizations, omissions, or subset selection criteria applied to this data set.

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

    Polygon and chain-node topology present.
    Polygon topology was constructed with standard ArcInfo Workstation editing and topology tools.
    

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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: None - Though Subject to Cost Recovery Rules
Use constraints:
These data are public information and may be used and interpreted by organizations, agencies, units of government, or others. The user has sole responsibility for ensuring the appropriate application of these data and the U.S. Bureau of Land Management shall not be held liable for any use or misuse of the data described hereon. 
Generally, these data are intended for small scale (1:24,000 and smaller) natural resource management and planning applications. It is strongly recommended that these data be acquired directly from the U.S. Bureau of Land Management and not indirectly through some other source which may have changed the data. It is also strongly recommended that careful attention be paid to the content of the metadata file associated with these data. 
Users are cautioned that digital enlargement of these data to scales larger than that at which they where originally mapped can cause misinterpretation. Users are further cautioned that these data and interpretations derived from them do not eliminate the need for onsite survey and evaluation of specific sites for intensive uses. The U.S. Bureau of Land Management should be cited as the data source in any products derived from these data.

Distributor 1 of 1

  1. Who distributes the data set?

    GIS Manager
    U.S. Bureau of Land Management, California State Office
    2800 Cottage Way
    Sacramento, CA 95825
    USA

    916-978-4562 (voice)
    Contact Instructions:
    Voice Telephone, 8AM - 5PM Pacific Time

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

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    These data are provided without the approval of the Director of the U.S.Bureau of Land Management and no warranty expressed or implied is made regarding the accuracy, completeness, or utility of these data, nor shall
    the act of distribution constitute any such warranty.  Any conclusions drawn from the use or misuse of these data are soley the responsibility of the user and the U.S Bureau of Land Management shall not be held liable for such use.
    This disclaimer applies both to individual use of these data and aggregate use with other data. 

  4. How can I download or order the data?

  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: 20070409
Last reviewed: 20070409

Metadata author:
RoseMerida Lucero
U.S. Bureau of Land Management, California State Office
GIS Automated Mapping State Coordinator
2800 Cottage Way
Sacramento, CA 95825
USA

916-978-4355 (voice)

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

Metadata extensions used:
  • http://www.esri.com/metadata/esriprof80.html
  • http://www.esri.com/metadata/esriprof80.html
  • http://www.esri.com/metadata/esriprof80.html
  • http://www.esri.com/metadata/esriprof80.html

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