Canaan Valley National Wildlife Refuge Boundary Data

Metadata also available as - [Outline] - [SGML] - [XML]

Frequently-anticipated questions:

What does this data set describe?

Title: Canaan Valley National Wildlife Refuge Boundary Data
Abstract:
National Wildlife Refuges are federal lands managed by the U.S. Fish and Wildlife Service (USFWS). The primary source for boundary information is the USFWS Realty program (status maps, legal surveys). An effort by the USFWS Region 5 (northeast states - ME, NH,VT, MA, RI, CT, NY, PA, NJ, MD, DE, WV, VA) Realty Division, Cartography and Spatial Data Services Branch has resulted in digital refuge boundaries for all refuges in the northeast at a scale of 1:24,000.
  1. How should this data set be cited?

    US Fish Wildlife Service, Region 5, Refuges and Wildlife Divisio, 20000711, Canaan Valley National Wildlife Refuge Boundary Data: US Fish and Wildlife Service, Hadley, Massachusetts.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -79.456528
    East_Bounding_Coordinate: -79.321493
    North_Bounding_Coordinate: 39.182065
    South_Bounding_Coordinate: 39.005032

  3. What does it look like?

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

    Calendar_Date: 11-Jul-2000
    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 (87)
      • Entity point (35)
      • GT-polygon composed of chains (35)
      • Point (4)

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

      The map projection used is Transverse Mercator.

      Projection parameters:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -81.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000016
      Ordinates (y-coordinates) are specified to the nearest 0.000016
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Refuge boundaries define areas that are approved by the U.S. Congress for acquisition into the National Wildlife Refuge System, or are currently owned by USFWS. Arcs are coded with an item "boundary"with the type of boundary line; polygons are coded with an item "status" that describes their ownership status. See "Service Lands Boundary Data SOP."
    Entity_and_Attribute_Detail_Citation: no information

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?

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

    US Fish Wildlife Service, Realty Office, Cartography and Spatial Data Services Branch
    Supervisory Cartographer
    US Fish & Wildlife Service, Realty 300 Westgate Center Dr.
    Hadley, MA 01035
    USA

    (413) 253-8292 (voice)
    (413) 253-8451 (FAX)

Why was the data set created?

The intended application of the data is to serve as a spatial reference of refuge boundaries for other data layers in GIS and mapping applications. It is specifically not intended to be used as a land survey or representation of land for conveyance or tax purposes. For Survey data, please contact USFWS, Region 5, Realty Office, Surveys Branch.

How was the data set created?

  1. From what previous works were the data drawn?

    RE status map (source 1 of 1)
    YSFWS, Region 5, Refuges and Wildlife Divisio, 197706, Canaan Valley NWR Status Map: National Wildlife Refuge Status Maps N/A, USFWS, Hadley, Massachusetts.

    Type_of_Source_Media: mylar
    Source_Scale_Denominator: 24000
    Source_Contribution: status information

  2. How were the data generated, processed, and modified?

    Date: 11-Jul-2000 (process 1 of 1)
    Status maps were registered to geographic coordinates, boundaries were digitized and labeled. Digital files were updated using survey and collateral data, then stepped through 3 levels of quality-control review for spatial and thematic accuracy. Complete process description can be found in "Service Lands Boundary Data SOP".

    Data sources used in this process:

    • RE Status Map

  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?

    Digital refuge boundaries are plotted with arc and polygon attributes, then compared to USFWS Realty status maps, survey documents, and collateral information for coding accuracy. Three levels of quality-control review are conducted (Cartography and Spatial Data Services, Realty Management Branch, Refuge Staff) with corrections being incorporated after each review until the dataset is deemed error-free. See "Service Lands Boundary Data Standard Operating Procedure".

  2. How accurate are the geographic locations?

    Digital refuge boundaries are verified against USGS 1:24,000-scale,7.5' DLG, DRG, or 1:12,000-scale DOQQ data such as roads, hydrography, or plotted at 1:24,000 scale and overlayed on USGS 7.5' maps. Data are stored in ArcInfo double precision.

  3. How accurate are the heights or depths?

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

    All boundaries were digitized for exterior fee-titled, USFWS owned lands, acquired tracts, and areas approved for USFWS acquisition. Plots are generated and quality-control reviewed for omission and commission digitizing errors.

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

    All polygons are closed and adjusted to the most accurate geographic features, usually on a USGS 7.5' topographic quad. All dangling arcs, undershoots, and overshoots have been removed.

How can someone get a copy of the data set?

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

Access_Constraints: None
Use_Constraints:
Refuge boundary data were compiled for resource applications. It is inappropriate to use these data in legal situations, or other applications where spatial error cannot exceed the USGS 7.5-minute mapping standards.

  1. Who distributes the data set? (Distributor 1 of 1)

    USFWS, Region 5, Realty Office, Cartography and Spatial Data Services Branch
    Supervisory Cartographer
    US Fish and Wildlife Service, Realty 300 Westgate Center Dr.
    Hadley, MA 01035
    USA

    (413) 253-8292 (voice)
    (413) 253-8451 (FAX)

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

    USFWS National Wildlife Refuge Boundary Data

  3. What legal disclaimers am I supposed to read?

    None

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 11-Jul-2000
Metadata author:
Linda Shaffer
US Fish and Wildlife Service, Region 5, Realty, Cartography and Spatial Data Services Branch
Supervisory Cartographer
US Fish and Wildlife Service, Realty 300 Westgate Center Dr.
Hadley, MA 01035
USA

(413) 253-8292 (voice)
(413) 253-8451 (FAX)

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

Generated by mp version 2.8.6 on Tue Aug 09 15:55:26 2005