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MnDOT BaseMap - County

This page last updated: 10/22/2003
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary
Originator  Minnesota Department of Transportation (MnDOT) 
Abstract  County, which represents county boundaries within the state, is a layer of the State of Minnesota BaseMap which consists of a number of individual data layers or themes digitized from USGS 7.5-minute quadrangles. These data layers fall into the following broad categories: transportation system, civil and political boundaries, and surface water. A description of the County layer is included in Section 5 of this document - Entity and Attribute Overview. 
Browse Graphic  none available 
Time Period of Content Date  01/01/2003
Currentness Reference  The original digitization was done during the 1990-1995 time period. For any given area, MnDOT used the most recent USGS 7.5-minute quadrangle available at that time. For BaseMap, the following data layer was updated as recently as January 2003 using the most up-to-date available information:

County 

Access Constraints  BaseMap is available to the public at no charge at https://www.dot.state.mn.us/maps/gisbase/html/datafiles.html. 
Use Constraints  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 the disclaimer. The disclaimer can be found in Section 6 of this document (distribution liability). 
Distributor Organization  Minnesota Department of Transportation (MnDOT) 
Ordering Instructions  Contact Distributor or go to https://www.dot.state.mn.us/maps/gisbase/html/datafiles.html 
Online Linkage  Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata. 

Full Metadata
MnDOT BaseMap - County

Go to Section:
1. Identification
2. Data Quality
3. Spatial Data Organization
4. Spatial Reference
5. Entity and Attribute
6. Distribution
7. Metadata Reference
Section 1 Identification Information   Top of page 
Originator  Minnesota Department of Transportation (MnDOT) 
Title  MnDOT BaseMap - County 
Abstract  County, which represents county boundaries within the state, is a layer of the State of Minnesota BaseMap which consists of a number of individual data layers or themes digitized from USGS 7.5-minute quadrangles. These data layers fall into the following broad categories: transportation system, civil and political boundaries, and surface water. A description of the County layer is included in Section 5 of this document - Entity and Attribute Overview. 
Purpose  The BaseMap was developed to fill a need at MnDOT for a continuous, statewide GIS base map of the transportation system. 
Time Period of Content Date  01/01/2003
Currentness Reference  The original digitization was done during the 1990-1995 time period. For any given area, MnDOT used the most recent USGS 7.5-minute quadrangle available at that time. For BaseMap, the following data layer was updated as recently as January 2003 using the most up-to-date available information:

County 

Progress  Complete 
Maintenance and Update Frequency  Annually 
Spatial Extent of Data  State of Minnesota 
Bounding Coordinates  -97.25 
-89.50 
49.50 
43.50 
Place Keywords  Minnesota 
Theme Keywords  County, County name, County number, FIPS (Federal Information Processing Standard) and County FIPS. 
Theme Keyword Thesaurus  None 
Access Constraints  BaseMap is available to the public at no charge at https://www.dot.state.mn.us/maps/gisbase/html/datafiles.html. 
Use Constraints  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 the disclaimer. The disclaimer can be found in Section 6 of this document (distribution liability). 
Contact Person Information  Bob Wolbeck, MnDOT BaseMap Coordinator 
Minnesota Department of Transportation (MnDOT) 
Geographic Information and  Mapping Section, Office of Transportation Data & Analysis,  395 John Ireland Boulevard, Mail Stop 450 
St. Paul, MN 55155 
Phone: 651-366-3880 
FAX: 651-366-3886
E-mail: gisinfo.dot@state.mn.us 
Browse Graphic  none available 
Browse Graphic File Description  Not applicable 
Associated Data Sets 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy  Unknown 
Logical Consistency  Data have been topologically structured and verified.
Completeness  The following layer is complete for the entire state of Minnesota:

County 

Horizontal Positional Accuracy  Locational accuracy for features derived from USGS 7.5-minute quadrangles cannot be assumed to exceed National Map Accuracy Standards for 1:24,000 scale maps (+/- 40 feet or 12 meters) 
Vertical Positional Accuracy  Not applicable 
Lineage  Data Source: 
1:24,000-scale USGS 7.5-minute quadrangles 

Processing Steps:
During the time period 1990-1995, the BaseMap data layers were digitized from USGS 7.5-minute quadrangles using MicroStation CADD. A total of 1745 quadrangles were digitized. For any given area, MnDOT used the most recent quadrangle available at that time. The digital MicroStation CADD files were converted from State Plane Coordinates to UTM and then converted into ARC/INFO coverages. The ARC/INFO files were merged into statewide, seamless coverages and then attributes were added. The coverage has been updated continuously as information has come in to the Geographic Information and Mapping Unit. 

Source Scale Denominator  24000 
Section 3 Spatial Data Organization Information Top of full metadata Top of page 
Native Data Set Environment  ARC/INFO 8.0 accessed by PCs running Windows 2000. 
Geographic Reference for Tabular Data  None 
Spatial Object Type  Vector 
Vendor Specific Object Types  Arc, Node and Polygon 
Tiling Scheme  Statewide 
Section 4 Spatial Reference Information Top of full metadata  Top of page 
Horizontal Coordinate Scheme  UTM 
Ellipsoid  GRS80 
Horizontal Datum  NAD83 
Horizontal Units  Meters 
Distance Resolution  Unknown 
Altitude Datum  Not applicable 
Altitude Units 
Depth Datum  Not applicable 
Depth Units 
Cell Width 
Cell Height 
Latitude Resolution 
Longitude Resolution 
UTM Zone Number  15E 
SPCS Zone Identifier 
County Coordinate Zone Identifier 
Coordinate Offsets or Adjustments  None 
Map Projection Name 
Map Projection Parameters 
Other Coordinate System's Definition 
Section 5 Entity and Attribute Information Top of full metadata  Top of page 
Entity and Attribute Overview  County polygons are coded for name, number, FIPS and county FIPS. 
Entity and Attribute Detailed Citation  HTML Table 
Section 6 Distribution Information Top of full metadata  Top of page 
Publisher  Minnesota Department of Transportation (MnDOT) 
Publication Date  Unknown 
Contact Person Information  Bob Wolbeck 
MnDOT BaseMap Coordinator 
Minnesota Department of Transportation (MnDOT) 
Geographic Information and  Mapping Section, Office of Transportation Data & Analysis,  395 John Ireland Boulevard, Mail Stop 450 
St. Paul, MN 55155 
Phone: 651-366-3880 
FAX: 651-366-3886 
E-mail: gisinfo.dot@state.mn.us 
Distributor's Data Set Identifier  BaseMap 
Distribution Liability  The Minnesota Department of Transportation 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 Transportation assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on this data. 
Transfer Format Name BaseMap is available in zipped ArcView shapefiles on http://www.dot.state.mn.us/maps/gisbase/html/datafiles.html 
Transfer Format Version Number 
Transfer Size  Zipped file: approximately 1 MB 
Ordering Instructions  Contact Distributor or go to https://www.dot.state.mn.us/maps/gisbase/html/datafiles.html 
Online Linkage  Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above. 
Section 7 Metadata Reference Information Top of full metadata  Top of page 
Metadata Date  10/22/2003
Contact Person Information  Bob Wolbeck, MnDOT BaseMap Metadata Steward 
Minnesota Department of Transportation (MnDOT) 
Geographic Information and  Mapping Section, Office of Transportation Data & Analysis,  395 John Ireland Boulevard, Mail Stop 450 
St. Paul, MN 55155 
Phone: 651-366-3880 
FAX: 651-366-3886 
E-mail: gisinfo.dot@state.mn.us 
Metadata Standard Name  Minnesota Geographic Metadata Guidelines 
Metadata Standard Version  1.2 
Metadata Standard Online Linkage  https://www.lmic.state.mn.us/gc/stds/metadata.htm 




This page last updated: 10/22/2003