Metadata: Mesabi Range Documented Mine Shafts

Mesabi Range Documented Mine Shafts

This page last updated: 02/28/2018
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Department of Natural Resources (MN DNR) Division of Lands and Minerals

Title: Mesabi Range Documented Mine Shafts

Abstract: The Mesabi Range Documented Mine Shafts coverage contains detailed information regarding documented natural iron ore mine shafts on the Mesabi Range.

Purpose: To provide location of mine shafts for mapping, documentation, monitoring, analysis, and land use planning.

Time Period of Content Date:

Currentness Reference: 2006-2008: Digitization of the Central Mesabi Range underground mine features.
2008-2010: Digitization of the Eastern Mesabi Range underground mine features.
2010-2012: Partial digitization of the Western Mesabi Range underground mine features.
All features were digitized from historical mine maps dated 1903 to 1961.

Progress: Complete for the length of the Mesabi Range east of the Itasca/St. Louis county line; incomplete west of the Itasca/St. Louis county line.

Maintenance and Update Frequency: None Currently Planned

Spatial Extent of Data: Mesabi Range of Northeastern Minnesota from Nashwauk to Biwabik

Bounding Coordinates: -93.19
-91.81
47.74
47.37

Place Keywords: Mesabi Range, Municipalities of Nashwauk, Keewatin, Hibbing, Chisholm, Buhl, Kinney, Mountain Iron, Virginia, Eveleth, Gilbert, Biwabik, and Babbitt

Theme Keywords: Mesabi Range, iron ore, natural ore, underground mines, underground workings, shafts

Theme Keyword Thesaurus:

Access Constraints: None

Use Constraints: In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it).

Contact Person Information: Dale Cartwright, Senior Engineering Specialist
MN DNR Division of Lands and Minerals
1525 3rd Ave. East
Hibbing, MN  55746
Phone: 218-231-8442
Fax: 218-262-7328
Email: dale.cartwright@state.mn.us

Browse Graphic: None available

Associated Data Sets: mesabi_underground_workingspy.shp, mesabi_underground_cavedln.shp, mesabi_underground_parcelspy.shp, mesabi_underground_propertiespy.shp, mesabi_underground_DatumConversion.pdf, fgdb_mesabi_undergroundmines

Section 2: Data Quality

Attribute Accuracy: All available historical documentation.

Logical Consistency:

Completeness: Comlete for all found documented natural iron ore mine shafts on the Mesabi Range from the vicinity of the city of Nashwauk through the eastern end of the Mesabi Range. This does not preclude the existence of additional or more recent mine maps that may indicate the presence of more extensive mine workings.

Horizontal Positional Accuracy: 1:24,000

Vertical Positional Accuracy: Elevations in data set were taken from the original mine maps.

Lineage: Underground mining areas were compiled from a number of sources. Areas with documented underground mine workings were digitized on screen using a compilation of a variety of historical maps dated from 1903 to 1961, cross sections, images and tabular documentation. Other references included USX plate images of the Mesabi Range, GNIOP Mesabi Range Maps, and an assortment of historical mining maps (1200 scale to 24000) stored at various agencies and companies including: Iron Range Research Center (IRRC), MN DNR Lands and Minerals Office, MN Department of Revenue, RGGS, Meriden Engineering, Great Northern Iron Ore Properties (GNIOP), Eveleth Fee, ArcelorMittal Minorca Mine, Cliffs Natural Resources, Hibbing Taconite, USS Mintac and USS Keetac. Arcs and polygons were digitized in ESRI ArcGIS 9.2 (central Mesabi) and ESRI ArcGIS 9.3 (eastern, western Mesabi) from a geo-referenced image of a compilation of the above documentation. Compiled information was geo-referenced to survey PLS corners where available with at least 4 control points digitized at a minimum of 1:2000. Where survey control points were not available, scans were geo-referenced to other scans that were larger in scale and geo-referenced to survey points. Undocumented underground features were not mapped and are not included in this dataset.

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum: NAVD88

Vertical Units: feet

Depth Datum: Mean sea level or Lake Superior Datum (See mesabi_underground_DatumConversion.pdf for details: the elevation used for Lake Superior Datum can change for different mines).

Depth Units: feet

Section 5: Attributes

Overview:

Detailed Citation:

Table Detail:
mesabi_underground_shaftspt
Field NameValid ValuesDefinitionDefinition Source
FID
-
Unique Identifier
ShapeenumeratedFeature class type
Point ZM
MINENAME
-
Name of underground mine
V_DATUMenumeratedBase value for elevation data (See mesabi_underground_DatumConversion.pdf for details; many of the exact values for the Lake Superior Datums are unknown.)
Sea Level
Lake Superior
Other
MINEFEATURenumeratedType of undeground mine feature
Shaft
LEVEL
-
Level name given on the original underground mine map
SOURCEMAP
-
Image name assigned to the original underground mine map from which the feature was digitized, typically of the format MMM00SSLLLNNR where MMM=mine name, 00=map date (year:1903 (03)-1961 (61); 00 or XX where unknown), SS=map source (agency or company), LLL=mine level, NN=map number of multiples with same name, R=georeferenced
ELEVATION
-
Elevation given on the original underground mine map (floor elevation)
FEATURENAM
-
Proper feature name label as given on the original underground mine map (ex.: Timber Shaft No. 7)
COLLARELEV
-
Collar elevation for the feature from the original underground mine map
REMARKS
-
Comments from research
FEATURETYPenumeratedSub-type of MINEFEATUR field (ex.: FEATURETYP=Main Shaft, a sub-type of MINEFEATUR=Shaft)
Air Shaft
Drainage Shaft
Exploration Shaft
Hoisting Shaft
Incline Shaft
Main Shaft
Manway
Old ShaftNoted as such on original mine map
Possible Shaft
Proposed Shaft
Pump Shaft
Secondary ShaftOther than a main shaft
Shaft
Timber Shaft
Water Shaft
Winze
MAPSOURCEenumeratedAgency or company from which the original underground mine maps were obtained
ArcelorMittalArcelorMittal Minorca Mine
Cliffs Natural Resources
Dan Lynch
Dept. of RevenueMN Department of Revenue
DNRMN Department of Natural Resources
Eveleth FeeEveleth Fee Office
GNIOPGreat Northern Iron Ore Properties
IRRCIron Range Research Center
KeetacKeewatin Taconite
MeridenMeriden Engineering
MittalMittal Steel (ArcelorMittal Minorca Mine)
OSMREUS Office of Surface Mining Reclamation and Enforcement
RGGSRGGS Lands and Minerals, LTD
US SteelUnited States Steel
UTACUnited Taconite
ELEV_CEIL
-
Estimation of the ceiling elevation of the underground feature (This is ONLY AN ESTIMATION done for 3D modeling purposes.)

Section 6: Distribution

Publisher: Minnesota Department of Natural Resources Division of Lands and Minerals

Publication Date: 02/28/2018

Contact Person Information: Dale Cartwright, Senior Engineering Specialist
MN DNR Division of Lands and Minerals
1525 3rd Ave. East
Hibbing, MN  55746
Phone: 218-231-8442
Fax: 218-262-7328
Email: dale.cartwright@state.mn.us

Distributor's Data Set Identifier: mesabi_underground_shaftspt.shp

Distribution Liability: The Minnesota Department of Natural Resources makes no representation or warranties, express or implied, with respect to the reuse of data provided herewith, regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data 'as is', and assumes all risks associated with its use. By accepting this data, the user agrees not to transmit this data or provide access to it or any part of it to another party unless the user shall include with the data a copy of this disclaimer. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on this data.

Ordering Instructions:

Online Linkage: None available

Section 7: Metadata Reference

Metadata Date: 02/28/2018

Contact Person Information: Dale Cartwright, Senior Engineering Specialist
MN DNR Division of Lands and Minerals
1525 3rd Ave. East
Hibbing, MN  55746
Phone: 218-231-8442
Fax: 218-262-7328
Email: dale.cartwright@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 02/28/2018
Go back to top

Created with MGMG stylesheet version 2017.04.25.1