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Choose
from a listing of DNR interactive maps the provide a wide variety of information about your area of interest.
Learn
how geographic information systems (GIS) technology is being used at the DNR.
Discover
how to access maps, data and aerial photography available from DNR programs.

Accessing DNR GIS Data Holdings

Frequently-requested DNR geospatial data holdings managed by the DNR Bureau of Technology Services (BTS) are available for download from the DNR Public FTP site using your web browser and at no cost. DNR geospatial data are shared in the agency's standard Coordinate Reference System and standard Data Format.

Accessing Data Held by Other DNR Bureaus

A wide variety of geographic and non-geographic data is maintained by other individual DNR programs outside the Bureau of Technology Services. These DNR program GIS data sets were developed primarily to fulfill certain regulatory responsibilities or to provide specific customer services, and may include limited locational information. more...

Coordinate Reference System

Data are provided in the DNR's standard coordinate reference system - the Wisconsin Transverse Mercator (WTM) coordinate system of 1983 based on the 1991 adjustment to the North American Datum of 1983 (WTM83, NAD83 (1991). Conversion of GIS data from WTM83, NAD83 (1991) to other coordinate reference systems can be carried out using commercially-available GIS software.

Data Format

Data in the GIS Data Repositories is available in the format, geographic extent, and geo-referencing system in which the data is maintained and used on the DNR computer network. DNR staff are not available to convert GIS data to other formats.

You can download zipped statewide versions of frequently-requested DNR GIS data from the DNR Public FTP site using your Web browser.

Contact information
For information or comments on accessing DNR GIS data, contact:
DNR Bureau of Technology Services
Last revised: Thursday February 02 2017