Metadata for Montana Trails from 1:100,000 scale Digital Line Graphs Metadata for Montana Trails from 1:100,000 scale Digital Line Graphs

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Identification Information:

Citation:

Originator: Montana State Library
Publication date: 12/09/1997
Title: Montana Trails from 1:100,000 scale Digital Line Graphs
Other citation details:: The former name of the data set on the NRIS web site was "mt101"
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Trails_Tracks_1997.zip

Browse graphic file name: http://docs.msl.mt.gov/geoinfo/Images/Metadata/Trails_Tracks_Thumb.gif

Abstract:

This coverage contains all of the trails and four-wheel-drive tracks from the U.S. Geological Survey 1:100,000 scale Digital Line Graphs for Montana. No edgematching has been done between the quadrangles.

Time period of content:

Calendar date: 1990
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:

Completeness report:

Unknown. Density of trails in adjacent 1:100,000 scale quadrangles is obviously variable.

Horizontal Positional Accuracy Report:

Approximate horizontal accuracy is 51 meters, assuming source data meets National Map Accuracy Standards.

Lineage:

Source information:

Originator:: National Mapping Division
U.S. Geological Survey
Title: 1:100,000-scale Digital Line Graphs
Source scale denominator: 100000
Source contribution: The data set was extracted from this source.
Calendar date: 1990

Process step:

Convert DLG files to Arc/Info format. Performed by the Bureau of Land Management, Montana Office, exact date is unknown.


Process date: 08/01/1997

Process step:

Select trails (minor codes = 211 or 212, major codes = 170) from DLG coverages, combine all quadrangles into one coverage, and project data to Albers. Performed at the State Library.


Process date: 12/08/1997

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: String

SDTS object count: 16643

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: Trails_Tracks_1997.dbf

Entity type definition: feature attribute table

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: FNODE_

Attribute definition:: From-node sequence number from original coverage version of the data

Attribute label: TNODE_

Attribute definition:: To-node sequence number from original coverage version of the data

Attribute label: LPOLY_

Attribute definition:: Left polygon sequence number from original coverage version of the data

Attribute label: RPOLY_

Attribute definition:: Right polygon sequence number from original coverage version of the data

Attribute label: LENGTH

Attribute definition: Length of the feature in meters

Attribute label: MT101_

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

Attribute label: MT101_ID

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

Attribute label: MINOR1

Attribute definition: USGS attribute code

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: 01/17/2014

Metadata review date: 04/17/2013

Metadata review date: 09/29/2004

Metadata review date: 12/09/1997

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