Metadata for Silver Bow Creek Modified Railroads, 1991 Metadata for Silver Bow Creek Modified Railroads, 1991

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Identification Information:

Citation:

Originator: Montana State Library

Publication date: 10/27/1994

Title: Silver Bow Creek Modified Railroads, 1991

Publication place: Helena, Montana
Publisher: Montana State Library

Other citation details:

The former name of this data set on the NRIS web site was "rr14"

Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Clark_Fork_Superfund/SilverBowCreekRailroad1991.zip

Larger Work Citation:

Title:: GIS Layers for Clark Fork Superfund Sites, Montana, 1988-2000
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={33b14155-3366-42a0-b50c-1e21d5224fe0}

Abstract:

This layer contains railroad lines for the Streamside Tailings Operable Unit between Enright, near I-15, and Crackerville. The lines originated as U.S. Geological Survey 1:24,000 Digital Line Graph data and were clipped to the area of the Operable Unit. Lines that were available in the Upper Clark Fork Large Scale Photogrammetric Base Map data set were removed, and the remaining lines were adjusted so that they connected with the ends of the photogrammetric data.

These data were formerly available from the Montana State Library web site but were removed because they are potentially out of date. Please contact the Federal Superfund Bureau of the Montana Department of Environmental Quality if you want these data so they may tell you if newer or better data are available. If the data are not available from the Department of Environmental Quality, you may request a copy from the Montana State Library data archive.

Time period of content:

Calendar date: 1991
Currentness reference: Publication Date

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

Data Quality Information:

Horizontal Positional Accuracy Report:

Approximate coordinate accuracy is 40 feet, assuming the source map meets National Map Accuracy Standards.

Lineage:

Source information:

Originator:: National Mapping Division
U.S. Geological Survey
Publication date: 1989
Title: 1:24,000-scale Digital Line Graphs
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={D47936E4-4C60-4B8D-A611-56BFE14AF3BC}
Source scale denominator: 24000
Source contribution: The data set was selected from this source and edited.
Beginning date: 1961
Ending date: 1989

Source information:

Originator: Horizons, Incorportated
Publication date: 01/20/1992
Title:: Large Scale Photogrammetric Base Map Data, Upper Clark Fork Region, Montana
Online linkage: http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={6AD09C89-54E9-480C-BD48-427957906F1C}
Source scale denominator: 7200
Type of source media: stable base media
Source contribution:: The data were adjusted to match with the ends of the lines in this source.
Calendar date: 06/15/1991

Process step:

Clip the USGS data the area of the Streamside Tailings Operable Unit and clip out the areas covered by the Horizon data.


Process date: 10/27/1994

Process step: Edgematch the USGS data to the Horizon Data.


Process date: 10/27/1994

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: SilverBowCreekRailroad1991

Entity type definition: Polyline feature class

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature coordinates

Attribute label: RAIL_ID

Attribute definition:: Database user ID from original ESRI coverage version of the data

Attribute label: CODE

Attribute definition: Code for railroad type

Distribution Information:

Distributor:

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

Resource description: Downloadable Data

Distribution liability:

Metadata Reference Information:

Metadata date: 10/21/2014

Metadata review date: 07/05/1996

Metadata review date: 02/03/1995

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