Metadata for 1:250,000 Scale (1x2 degree) Quadrangle Boundaries, Montana Metadata for 1:250,000 Scale (1x2 degree) Quadrangle Boundaries, Montana

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Identification Information:

Citation:

Originator: Montana State Library
Publication date: 07/02/1997
Title: 1:250,000 Scale (1x2 degree) Quadrangle Boundaries, Montana
Other citation details:: The former name of the data set on the NRIS web site was "cf103"
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Quads250k_1997.zip

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Thumbnails/19980202_482_thumb.jpg
Browse graphic file description: Thumbnail of Montana 1:250,000 Scale Quadrangle Locator map

Browse graphic file name: https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Individual/19980202_482_1998_MTScaleQuads250k.gif
Browse graphic file description: Montana 1:250,000 Scale Quadrangle Locator map

Abstract:

Boundaries of the 1x2 degree 1:250,000 scale quadrangles in Montana.

Time period of content:

Calendar date: 07/02/1997
Currentness reference: Ground Condition

Status:

Progress: Complete

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: Montana Relay 711
Fax: 406-444-0266
E-Mail: geoinfo@mt.gov

Data Quality Information:

Attribute accuracy report:

Quadrangle names and codes agree with the U.S. Geologic Survey source document. Area and length attributes are accurate within the precision possible with Arc/Info and the Albers Equal Area map projection.

Horizontal Positional Accuracy Report:

Vertex and node coordinates are exact, within the precision possible in Arc/Info. Lines between the vertices, approximately 1 second of arc long, will not follow the parallels exactly.

Lineage:

Source information:

Originator:: U.S. Geological Survey
National Mapping Program
Publication date: 1994
Title: Montana Index to Topographic and Other Map Coverage
Other citation details:: This is a large map with 5 index maps. The 250K map index is to the right of top center.
Source scale denominator: 5000000
Type of source media: Paper
Source contribution: The map names and codes were obtained from this source.
Calendar date: 1994

Process step:

Generate the map sheet grid in latitude/longitude coordinates. Densify the grid lines at one-minute intervals.


Process date: 07/02/1997

Process step: Project the data to Albers and add the polygon attributes


Process date: 07/02/1997

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

SDTS object count: 32

Spatial Reference Information:

Horizontal coordinate system definition:

Grid coordinate system name: State Plane Coordinate System 1983

SPCS zone identifier: 2500

Lambert conformal conic:

Standard parallel: 45
Standard parallel: 49
Longitude of central meridian: -109.5
Latitude of projection origin: 44.25
False easting: 600000.00000
False northing: 0.00000

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137
Denominator of flattening ratio: 298.257

Entity and Attribute Information:

Entity type label: Quads250k_1997.dbf

Entity type definition: Polygon Attribute Table

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: Area

Attribute definition: area of the polygon in square meters

Attribute label: Perimeter

Attribute definition: perimeter of the polygon in meters

Attribute label: CF103_

Attribute definition: Sequence number from original coverage version of the data

Attribute label: CF103_ID

Attribute definition: ID number from original coverage version of the data

Attribute label: NAME

Attribute definition: Map sheet name

Attribute label: CODE

Attribute definition: Quadrangle southeast corner latitude/longitude code
Range domain minimum: 44104
Range domain maximum: 48116

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: 01/09/2014

Metadata review date: 04/17/2013

Metadata review date: 09/29/2004

Metadata review date: 07/02/1997

Metadata contact:

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