Metadata for Quarter-Quadrangles of Montana, Idaho, and Wyoming, 2004

- Identification Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- FGDC XML Metadata

Identification Information:

Citation:
  Originator: Montana State Library
  Publication date: 2004
  Title: Quarter-Quadrangles of Montana, Idaho, and Wyoming, 2004
  Publication place: Helena, Montana
  Publisher: Montana State Library
  Other citation details:
    The former name of the data set on the NRIS web site was "qquad24"
  Online linkage: ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads_quarter_24k.zip
Abstract:
  This layer contains 3.75-minute quadrangles (each of which covers one quarter of a U.S. Geological Survey 7.5-minute topographic map) for Montana, Idaho, and Wyoming. The feature attributes include the status of the State Library's digital orthophoto holdings and USGS quadrangle names. These boundaries show the NAD83 location of the graticule lines, rather than the NAD27 lines that form USGS quadrangle boundaries.
Time period of content:
  Calendar date: 2004
  Currentness reference: publication date
Status:
  Progress: Complete
  Maintenance and update frequency: None Planned
Access constraints: None
Use constraints:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Point of contact:
  Montana State Library
  PO Box 201800
  Helena, Montana 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

Back to Top

Spatial Data Organization Information:

Point and vector object information:
  SDTS object type: G-polygon
    SDTS object count: 25244

Back to Top

Spatial Reference Information:

Horizontal coordinate system definition:
  Grid coordinate system name: State Plane Coordinate System
  SPCS zone identifier: 2500
  Lambert conformal conic:
  Standard parallel: 45.000000
  Standard parallel: 49.000000
  Longitude of central meridian: -109.500000
  Latitude of projection origin: 44.250000
  False easting: 600000.000000
  False northing: 0.000000
  Planar distance units: meters
  Geodetic model:
    Horizontal datum name: North American Datum of 1983
    Ellipsoid name: Geodetic Reference System 80
    Semi-major axis: 6378137.000000
    Denominator of flattening ratio: 298.257222

Back to Top

Entity and Attribute Information:

Entity type label: quads_quarter_24k
Entity type definition: Point feature class
  Attribute label: FID
    Attribute definition: Shapefile sequence number
  Attribute label: Shape
    Attribute definition: Feature geometry
  Attribute label: AREA
    Attribute definition: Area of quarter-quadrangle in square meters
  Attribute label: PERIMETER
    Attribute definition: Perimeter of quarter-quadrangle in meters
  Attribute label: DOQIDX_
    Attribute definition: Sequence number from original coverage version of the data
  Attribute label: NAME
    Attribute definition:
      Name of the USGS 7.5 minute quadrangle that contains this quarter-quadrangle
  Attribute label: CODE
    Attribute definition:
      Numeric 7.5-minute quadrangle code of the quadrangle that contains this quarter-quadrangle
    Attribute domain:
      The first two digits are the latitude, and the next three digits are the longitude, of the nearest whole degree to the south and west of the quadrangle. The sixth and seventh digits are the row and column number (1-8) of the 7.5-minute quadrangle within the 1x1 degree latitude/longitude block.
  Attribute label: QUARTER
    Attribute definition:
      Quarter-quadrangle (3.75-minute) identifier -- NE, NW, SE, or SW
  Attribute label: DATE
    Attribute definition:
      Date of the first generation U.S. Geological Survey digital orthophoto quarter-quadrangle image of the area held at the State Library. The earliest images are from 1990 and the latest are from 2003. The date is set to 1/1/1800 for quadrangles the Libray has no image for.
  Attribute label: DOQQSTATUS
    Attribute definition: Status of the State Library quarter-quadrangle orthophoto.

    Attribute Value | Definition of Attribute Value
    -1 | The quadrangle is outside of Montana and the availability is not known
    0 | The digital orthophoto quarter-quadrangle is not available
    3 | The digital orthophoto quarter-quadrangle is available at the State Library
    4 | The digital orthophoto quarter-quadrangle is available at the State Library
    5 | The digital orthophoto quarter-quadrangle is available from the US Geological Survey, but not at the State Library

  Attribute label: STATE
    Attribute definition: Single-character State code
    Attribute domain:
      Any quarter-quadrangle that touches Montana has a code of M. Other quadrangles are coded I, U, or W depending on whether they are primarily in Idaho, Utah, or Wyoming. Codes for these other states are un-reliable -- check the STATECODE field
  Attribute label: STATECODE
    Attribute definition:
      List of two-letter state abbreviations for all states touched by the 7.5-minute quadrangle
    Attribute domain:
      I believe these codes are derived from the states touched by the ENTIRE quadrangle that each quarter-quad is part of. The states are listed in order of how much area they cover in the quadrangle
  Attribute label: DARKIMAGE
    Attribute definition: DARKIMAGE

    Attribute Value | Definition of Attribute Value
    -9999 | No digital orthophoto quarter-quadrangle is available
    0 | The digital orthophoto quarter-quadrangle image has no black pixels, or the image is not available
    1 | The number of black pixels in the digital orthophoto quarter-quadrangle image is not known
    Numbers greater than 1 | Number of black pixels

  Attribute label: SPC_SID
    Attribute definition: State-Plane Coordinate MrSID image status

    Attribute Value | Definition of Attribute Value
    0 | The State Library does not have a MrSID version of this image in State Plane Coordinates
    1 | The State Library has a MrSID version of this image in State Plane Coordinates
    2 | This quarter-quadrangle is entirely covered by a lake and is not available

  Attribute label: SPC_TIFF
    Attribute definition: State-Plane Coordinate TIFF image status

    Attribute Value | Definition of Attribute Value
    -1 | The State Library does not have this image and it is outside of Montana
    0 | The State Library does not have this image and it is inside or close to Montana
    1 or 2 | This image is available at the State Library. There are two possible values because the images were formerly stored on two different disk systems.

  Attribute label: UTM_SID
    Attribute definition: UTM Coordinate MrSID image status

    Attribute Value | Definition of Attribute Value
    0 | The State Libary has not made a UTM MrSID image of this quadrangle
    1 | A UTM-Coordinate MrSID image of this quadrangle is available at the State Library
    2 | This quarter-quadrangle is entirely covered by a lake and is not available

  Attribute label: UTM_BSQVOLNUM
    Attribute definition:
      Tape volume number of the DLT tape the State Library received this image from the US Geological Survey on. If the number is zero, the State Library received this image on CD or does not have it.
  Attribute label: TAPECODE
    Attribute definition:
      This is the code the US Geological Survey used to identify the quadrangle on DLT tape.
    Attribute domain:
      This is similar to the CODE value, except that the last two digits are a sequence number (01-64), counted left to right, top to bottom, in the 1x1 degree latitude/longitude block.
  Attribute label: DOQQYEAR
    Attribute definition:
      This is the year of the digital orthophoto quarter quadrangle photograph

Back to Top

Distribution Information:

Distributor:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov
Resource description: Downloadable Data
Distribution liability:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Standard order process:
  Digital form:
    Format name: ESRI Shapefile
    Online option:
    ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads_quarter_24k.zip

Back to Top

Metadata Reference Information:

Metadata date: 01/07/2015
Metadata review date: 12/21/2005
Metadata contact:
  Montana State Library
  PO Box 201800
  Helena, Montana 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov

Back to Top