Metadata for Montana 7.5 Minute Quadrangle Boundaries Metadata for Montana 7.5 Minute Quadrangle Boundaries

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Identification Information:

Citation:

Originator: Montana State Library
Publication date: 06/27/2013
Title: Montana 7.5 Minute Quadrangle Boundaries
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads24k.zip

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Thumbnails/20040112_507_thumb.jpg
Browse graphic file description: Thumbnail showing some quadrangle boundaries

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Individual/20040112_507_2004_QuadNames.pdf
Browse graphic file description: Map of Montana's 7.5-minute quadrangle names

Abstract:

These data show the boundaries of the 1:24,000 scale, 7.5-minute USGS topographic maps of Montana. The polygon boundaries follow meridians and parallels of the NAD27 latitude-longitude lines that formed the boundaries of the 20th-century paper maps. All quadrangles that intersect Montana or that touch a quadrangle that intersects Montana have been included.Each polygon has fields for the map name and for four different ID code systems that have been used for the quadrangles. There is a field that shows the published year of the 1:24,000 scale topographic map that the Montana State Library has an image of.

Time period of content:

Beginning date: 1998
Ending date: 2013
Currentness reference:: Quadrangle dates were established in 1998. Map names were updated in 2013 to reflect the eliminaiton of "Squaw" names from geographic features in Montana.

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, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

SDTS object count: 3290

Entity and Attribute Information:

Entity type label: Quads24k

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: SHAPE

Attribute definition: Feature geometry

Attribute label: Name

Attribute definition:: USGS 1:24,000 scale map name. Where map names have changed, the old name is included in parenthesis. Quadrangles in Canada do not have names.

Attribute label: QCode_Text

Attribute definition:: This is a code for the quadrangles where the first five characters give the integer parts of the latitude and longitude of the quadrangle southeast corner, the sixth character is in the range "a" through "h" to indicate how many rows north the quad is from the whole latitude/longitude corner, and the seventh character is a number 1 through 8 to indicate how many columns west the quand is from the corner.

Attribute label: QCode_RC

Attribute definition:: This is a code for the quadrangles where the first five characters give the integer parts of the latitude and longitude of the quadrangle southeast corner, the sixth character is a number 1 through 8 to indicate how many rows north the quad is from the whole latitude/longitude corner, and the seventh character is a number 1 through 8 to indicate how many columns west the quand is from the corner.

Attribute label: QCode_Seq

Attribute definition:: This is a code for the quadrangles where the first five characters give the integer parts of the latitude and longitude of the quadrangle southeast corner. The sixth and seventh digits are a sequence number counting left to right and top to bottom from the northwest corner of the 1x1 degree quadrangle block.

Attribute label: CivilAirID

Attribute definition:: Civil Air Patrol Grid Designation. This consists of a three-character code designating which NOAA sectional aeronautical chart the quadrange is in, a three digit sequence number for 15-minute quadrangles, and a character "A" through "D" indicating which corner of the 15-minute quad the 7.5-minute quadrangle is in.

Attribute label: UTMZone

Attribute definition:: Universal Transverse Mercator coordinate zone that the quadrangle is in

Attribute label: States

Attribute definition:: Comma-delimited list of abbreviations of the states and/or provinces that the quandrangle covers

Attribute label: MSL_Date

Attribute definition:: Published year of the 1:24,000 scale topographic map that the Montana State Library has an image of. These quadrangles were obtained in 1998 and all of the dates are earlier than that.

Distribution Information:

Distributor:

Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov
E-Mail: geoinfo@mt.gov

Resource description: Downloadable Data

Distribution liability:

Standard order process:

Digital form:

Metadata Reference Information:

Metadata date: 12/03/2013

Metadata review date: 06/27/2013

Metadata contact:

Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY telephone: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov