Metadata for Montana Bureau of Mines and Geology Abandoned and Inactive Mines Database, 2006 Metadata for Montana Bureau of Mines and Geology Abandoned and Inactive Mines Database, 2006

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Identification Information:

Citation:

Originator: Montana Bureau of Mines and Geology (MBMG)
Publication date: 01/09/2006
Title:: Montana Bureau of Mines and Geology Abandoned and Inactive Mines Database, 2006
Other citation details:: The former name of the data set on the NRIS web site was "abdmine"
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Mine_MBMG2006.zip

Abstract:

Mine locations and attributes from the Montana Bureau of Mines and Geology (MBMG) Abandoned and Inactive Mines database. This data was compiled by MBMG using the U.S. Bureau of Mines MILS database as a basis. The information was updated during the USDA Forest Service (Region 1) and U.S. Bureau of Land Management mine inventory (conducted from 1992 to 2002). The coordinates and legal descriptions come from sources of varying accuracy. The attributes included here are a subset of those available from the MBMG database.

Purpose:

Identification of mine sites, locations, and attributes compiling past data with current research results. Emphasis is on those sites that have potential environmental effects on USFS-administered land.

Time period of content:

Beginning date: 1974
Ending date: 2005
Currentness reference: Publication Date

Status:

Progress: Complete
Maintenance and update frequency:: Updated as information is corrected and new information is incorporated, dependent on funding.

Access constraints: None

Use constraints:

This database relies heavily on the preceeding information from the U.S. Bureau of Mines MILS database. Locations are point data representing a larger area and are somewhat interpretive. Names of mine sites may change over time with differing owners.

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:

Phyllis Hargrave or John Metesh
Research Geologist/Hydrogeologist
Montana Bureau of Mines and Geology
1300 West Park Street
Butte, Montana 59701-8997
Telephone: 406-496-4606 or 406-496-4159
Fax: 406-496-4451
E-Mail: phargrave@mtech.edu or jmetesh@mtech.edu

Data Quality Information:

Attribute accuracy report:

Information reflects the accuracy of the original data for the sites that were not visited. Information on the sites visited have a higher degree of accuracy and the data is current for the time of the inventory. Numerical qualifiers are not available for accuracy for each site.

Completeness report:

The sites in the MBMG Abandoned and Inactive Mines database do not represent the locations of all the mines in Montana. The list is a compilation of mines noted in literature, in unpublished files at the MBMG, from personal knowledge, and from locations found during the field inventory. One site may represent multiple mine openings within a single ore deposit. Other sites may have never had any excavations associated with them. The MBMG database may represent the most complete list of mine sites in Montana; sites on or affecting US Forest Service land have the most complete records and were the focus of this inventory.

The OPTYPE, STATUS, and COM fields are blank for mines that were not in the U.S. Bureau of Mines MILS database.

Horizontal Positional Accuracy Report:

For sites that were visited, the accuracy represents confirmed locations using either GPS locations or by plotting the location on a paper copy 7.5-min quadrangle. For sites not visited but inventoried by MBMG, the accuracy varies but is confirmed by a literature description or by personal knowledge. Sites with locations from MILS have an accuracy of the original source which range from +/-5km to +/-10m depending on the accuracy of the description in the citation. These sites have unconfirmed locations.

Lineage:

Source information:

Originator:: U.S. Bureau of Mines
Branch of Engineering and Economic Analysis
Publication date: 09/01/1992
Title: Minerals Industry Location System (MILS)
Online linkage: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Mine_BOM1992.zip
Source contribution:: The data set is a subset of the Montana portion of the MILS database. About 7,180 entries were originally from the MILS database.
Beginning date: 1974
Ending date: 1992

Source information:

Originator:: Montana Bureau of Mines and Geology
Abandoned and Inactive Mines Program
Publication date: 2006
Title: Montana Abandoned and Inactive Mines Database
Source contribution: The data set is a copy of this source.
Calendar date: 2004

Process step:

MBMG imported selected fields from the U.S. Bureau of Mines MILS database as an original data source. MBMG staff then researched the mine localities that had the potential to impact USFS and USBLM federal lands, first by literature searches that screened out sites with little or no impacts to federal lands. Field visits gathered information on land ownership, site features and environmental problems for those sites with the potential to impact USFS- and USBLM-administered lands.


Process date: 2002

Process step:

The MBMG made corrections to the database and added approximately 20 additional sites.


Process date: 2004

Process step:

The MBMG made corrections to the database and added approximately 20 additional sites.


Process date: 2006

Spatial Data Organization Information:

Point and vector object information:

SDTS object type: Point

SDTS object count: 8452

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: Mine_MBMG2006.dbf

Entity type definition: Point Attribute Table

Attribute label: FID

Attribute definition: Shapefile sequence number

Attribute label: Shape

Attribute definition: Feature geometry

Attribute label: ID

Attribute definition: Unknown ID Number

Attribute label: NAME

Attribute definition: Name of mine or prospect

Attribute label: PROP_TYPE

Attribute definition: Description of mining type (lode, placer, quarry) or mill.

Attribute label: COM

Attribute definition:: List of up to 5 commodities mined, imported directly from the U.S. Bureau of Mines (MILS) database. This field is no longer maintained.

Attribute label: OPTYPE

Attribute definition:: Type of Mining Operation, imported directly from the U.S. Bureau of Mines MILS database. This field is no longer maintained.

Attribute label: STATUS

Attribute definition:: Operations status, imported directly from the U.S. Bureau of Mines MILS database. This field is no longer maintained.

Attribute label: TWN

Attribute definition: Public Land Survey Township Number and N/S designation

Attribute label: RNG

Attribute definition: Public Land Survey Range Number and E/W designation

Attribute label: SECT

Attribute definition: Public Land Survey Section Number

Attribute label: SUB_SECT

Attribute definition:: Sub-section designation (tract) counterclockwise starting in the upper right corner, ABCD

Attribute label: DLAT

Attribute definition: Latitude in decimal degrees, NAD27

Attribute label: DLONG

Attribute definition: Longitude in decimal degrees, NAD27

Attribute label: MBMGID

Attribute definition:: Mine identifier assinged by the Montana Burea of Mines and Geology.

Attribute label: MRDS

Attribute definition:: Mineral Resources Data System - U.S. Geological Survey sequence number.

Attribute label: AMLI

Attribute definition:: Abandoned Mine Land Inventory - Montana Department of Environmental Quality preliminary-assessment number.

Attribute label: MILS

Attribute definition:: Minerals Industry Location System - U.S. Bureau of Mines sequence number 1st two digits are the State code, next three are the County code.

Attribute label: VISIT

Attribute definition:: Identifies if the site was visited by MBMG staff as a part of its inventory. Some sites were not visited if they were deemed unlikely to affect public lands.

Attribute label: FOREST