Metadata for Montana Color Orthophotographs, 2004 Metadata for Montana Color Orthophotographs, 2004

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Identification Information:

Citation:

Originator: Montana Base Map Service Center
Publication date: 2005
Title: Montana Color Orthophotographs, 2004
Edition: 2004

Abstract:

The data set contains RGB digital mosaics of selected areas around Montana area at a resolution of 1 foot. The selected areas are Anaconda, Cut Bank, Deer Lodge, the Flathead Valley, Glendive, Great Falls, Havre, Hamilton, Lewistown, Miles City, and Sidney.

The data have been removed from online distribution due to concerns over the horizontal accuracy of the images. Please contact the State Library if you require access to the images. These images should be used for reference for content only rather than measuring of the locations of any objects visible in the images.

A shapefile index showing the area covered by the images is available at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Orthophoto_2004_Index.zip.

The data were prepared by Positive Systems for the Montana Department of Administration, Information Technology Services Division, on behalf of the GIS Subcommittee of the Montana Homeland Security Task Force (Helena, MT).

Purpose:

Digital images or aerial photographs were captured to support various governmental, municipal, tribal, and emergency management GIS activities. Orthorectified imagery products will be used to identify and collect geospatial information about structures, transportation, infrastructure, facilities and other information relative to multiple GIS applications.

Time period of content:

Beginning date: 07/02/2002
Ending date: 06/24/2004
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
P.O. 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:

The horizontal accuracy of the images provided by Positive Sytems has been called into question, with some areas having been noted as being in error by as much as 100 meters. These images should be used for reference for content only rather than measuring of the locations of any objects visible in the images.

Lineage:

Source information:

Title: Anaconda high-resolution aerial imagery
Calendar date: 06/07/2004

Source information:

Title: Cut Bank high-resolution aerial imagery
Calendar date: 04/30/2004

Source information:

Title: Deer Lodge high-resolution aerial imagery
Calendar date: 05/20/2004

Source information:

Title: Glendive high-resolution aerial imagery
Calendar date: 05/02/2004

Source information:

Title: Great Falls high-resolution aerial imagery
Calendar date: 05/01/2004

Source information:

Title: Hamilton high-resolution aerial imagery
Calendar date: 06/16/2004

Source information:

Title: Havre high-resolution aerial imagery
Calendar date: 04/30/2004

Source information:

Title: Lewistown high-resolution aerial imagery
Calendar date: 05/16/2004

Source information:

Title: Miles City high-resolution aerial imagery
Calendar date: 05/02/2004

Source information:

Title: Sidney high-resolution aerial imagery
Calendar date: 05/02/2004

Spatial Data Organization Information:

Spatial Reference Information:

Horizontal coordinate system definition:

Grid coordinate system name: State Plane Coordinate System

SPCS zone identifier: 2500

Lambert conformal conic:

Standard parallel: 45.000
Standard parallel: 49.000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 60000.000
False northing: 0.000

Planar distance units: meters

Geodetic model:

Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 1980
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222

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: Offline Data

Distribution liability:

Standard order process:

Digital form:

Format name: MrSID Image

Digital form:

Format name: GeoTIFF

Ordering instructions:

Please contact the State Library to obtain copies of this data.

Metadata Reference Information:

Metadata date: 01/10/2014

Metadata review date: 04/17/2013

Metadata review date: 01/23/2012

Metadata review date: 02/24/2005

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