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Mn/DOT BaseMap - Congtwp

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

Metadata Summary

Originator | Minnesota Department of Transportation (Mn/DOT)
Abstract | Congtwp, which represents PLSS congressional township 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 Congtwp 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, Mn/DOT 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: Congtwp
Access Constraints | BaseMap is available to the public at no charge at http://www.dot.state.mn.us/tda/basemap/index.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 (Mn/DOT)
Ordering Instructions | Contact Distributor or go to http://www.dot.state.mn.us/tda/basemap/index.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
Mn/DOT BaseMap - Congtwp

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 (Mn/DOT)
Title | Mn/DOT BaseMap - Congtwp
Abstract | Congtwp, which represents PLSS congressional township 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 Congtwp layer is included in Section 5 of this document - Entity and Attribute Overview.
Purpose | BaseMap was developed to fill a need at Mn/DOT 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, Mn/DOT 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: Congtwp
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 | Congtwp.
Theme Keyword Thesaurus | None
Access Constraints | BaseMap is available to the public at no charge at http://www.dot.state.mn.us/tda/basemap/index.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, Mn/DOT BaseMap Coordinator Minnesota Department of Transportation (Mn/DOT) Geographic Information and Mapping Section, Office of Transportation Data & Analysis, 395 John Ireland Boulevard, Mail Stop 642 St. Paul, MN 55155 Phone: 651-215-1973 FAX: 651-296-3311 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: Congtwp
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, Mn/DOT 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.
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 and Node
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 | Congtwp arcs have not been coded with any attributes at this time.
Entity and Attribute Detailed Citation | None
Section 6 | Distribution Information | Top of full metadata | Top of page
Publisher | Minnesota Department of Transportation (Mn/DOT)
Publication Date | Unknown
Contact Person Information | Bob Wolbeck Mn/DOT BaseMap Coordinator Minnesota Department of Transportation (Mn/DOT) Geographic Information and Mapping Section, Office of Transportation Data & Analysis, 395 John Ireland Boulevard, Mail Stop 642 St. Paul, MN 55155 Phone: 651-215-1973 FAX: 651-296-3311 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/tda/basemap/index.html
Transfer Format Version Number |
Transfer Size | Zipped file: approximately 1.8 MB
Ordering Instructions | Contact Distributor or go to http://www.dot.state.mn.us/tda/basemap/index.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, Mn/Dot BaseMap Metadata Steward Minnesota Department of Transportation (Mn/DOT) Geographic Information and Mapping Section, Office of Transportation Data & Analysis, 395 John Ireland Boulevard, Mail Stop 642 St. Paul, MN 55155 Phone: 651-215/1973 FAX: 651-296-3311 E-mail: gisinfo@dot.state.mn.us
Metadata Standard Name | Minnesota Geographic Metadata Guidelines
Metadata Standard Version | 1.2
Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm

This page last updated: 10/22/2003