Metadata for Montana City Built-up Areas from 1:250,000 Scale Maps Metadata for Montana City Built-up Areas from 1:250,000 Scale Maps

Download full XML Metadata

Identification Information:

Citation:

Originator: Montana State Library
Publication date: 02/05/1991
Title: Montana City Built-up Areas from 1:250,000 Scale Maps
Other citation details:: The former name of the data set on the NRIS web site was "ct2"
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Cities_1991.zip

Abstract:

Polygons defining the areas of 72 cities, digitized in the 1970's from 1:250,000 scale maps by the Montana Department of Community Affairs. There is no know criteria for a city's inclusion or ommision from this layer.

Purpose: Display of approximate extent of urbanized areas.

Time period of content:

Calendar date: 1953
Currentness reference: Publication Date

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:

Horizontal Positional Accuracy Report:

Approximate accuracy of the source maps is 130 meters, assuming they met National Map Accuracy Standards.

Lineage:

Source information:

Originator:: National Mapping Division
U.S. Geological Survey
Publication date: 1953
Title: 1:250,000-scale quadrangles
Source scale denominator: 250000
Type of source media: paper
Source contribution: The data set was digitized from these maps.
Beginning date: 1953
Ending date: 1975

Source information:

Originator: Montana Information Services Division
Publication date: Unpublished material
Title: Montana Features File
Source scale denominator: 250000
Type of source media: electronic file
Source contribution:: This electronic file was created by the Montana Department of Community Affaris by digitizing 1:250,000 scale maps. The date is not known except that it was probably digitized in the 1970's.
Calendar date: 1975

Process step: Convert the Montana Features File to Arc/Info format.


Process date: 02/05/1991

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: G-polygon

SDTS object count: 73

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: Cities_1991.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: CT2_

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

Attribute label: CT2_ID

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

Attribute label: NAME

Attribute definition: Name of city or town.

Attribute label: ACRES

Attribute definition: Area of polygon in acres

Attribute label: CLASS

Attribute definition: S(mall), M(edium) or L(arge)

Attribute label: LL

Attribute definition:: Unknown. It looks like a the result of a geographic sort of certain cities from east to west and north to south.

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: 01/10/2014

Metadata review date: 04/17/2013

Metadata review date: 09/29/2004

Metadata review date: 04/06/1992

Metadata review date: 05/07/1996

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