This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

1:100k Digital Raster Graphic - Collars Removed

Metadata Updated: April 9, 2015

A digital raster graphic (DRG) is a scanned image of an U.S. Geological Survey (USGS) standard series topographic map, including all map collar information. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map. The map is scanned at a minimum resolution of 250 dots per inch. DRG's are created by scanning published paper maps on high-resolution scanners. The raster image is georeferenced and fit to the UTM projection. Colors are standardized to remove scanner limitations and artifacts. The average data set size is about 6 megabytes in Tagged Image File Format (TIFF) with PackBits compression. DRG's can be easily combined with other digital cartographic products such as digital elevation models (DEM) and digital orthophoto quadrangles (DOQ). DRG's are stored as rectified TIFF files in geoTIFF format. GeoTIFF is a relatively new TIFF image storage format that incorporates georeferencing information in the header. This allows software, such as ArcView, ARC/INFO, or EPPL7 to reference the image without an additional header or world file. Within the Minnesota Department of Natural Resources Core GIS data set the DRG's have been processed to be in compliance with departmental data standards (UTM Extended Zone 15, NAD83 datum) and the map collar information has been removed to facilitate the display of the DRG's in a seamless fashion. These DRG's were clipped and transformed to UTM Zone 15 using EPPL7 Raster GIS.

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

Downloads & Resources

Dates

Metadata Date January 1, 9999
Metadata Created Date March 28, 2013
Metadata Updated Date April 9, 2015
Reference Date(s) January 1, 9999 (publication)
Frequency Of Update

Metadata Source

Harvested from Minnesota DNR

Graphic Preview

Graphic Preview

Additional Metadata

Resource Type Dataset
Metadata Date January 1, 9999
Metadata Created Date March 28, 2013
Metadata Updated Date April 9, 2015
Reference Date(s) January 1, 9999 (publication)
Responsible Party DNR-MIS (Point of Contact)
Contact Email
Access Constraints Use Constraints: None. Acknowledgment of the U.S. Geological Survey and the Minnesota Department of Natural Resources would be appreciated in products derived from these data., Access Constraints: None
Bbox East Long -89
Bbox North Lat 49.5
Bbox South Lat 43
Bbox West Long -97.5
Coupled Resource
Frequency Of Update
Graphic Preview File http://jmaps.dnr.state.mn.us/gis/dp_datasample.jsp?mpid=38000002&ptid=9&fcid=6&lname=1:100k Digital Raster Graphic - Collars Removed
Guid
Harvest Object Id b0e6a495-1b1a-48aa-9a7c-6451e5aa9849
Harvest Source Id 5546934e-bbe0-4cff-8926-e70aebfc97cb
Harvest Source Title Minnesota DNR
Licence 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.
Metadata Language
Metadata Type geospatial
Spatial Data Service Type
Spatial Reference System

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