Wisconsin's Outstanding and Exceptional Resource Water (OERW) designations are designed to include Wisconsin's cleanest waters. The OERW dataset was first developed in the 1990s using narrative descriptions from the state’s OERW designations described in NR102 and the state’s 1:24,000 scale hydrography dataset using 7.5 minute USGS topographic quadrangle maps. The OERW spatial data quality has been reviewed by GIS specialists working with biological field staff and using more detailed landmarks and data over time. The accuracy of the delineations continue to improve with the use of improved technologies and tools. Year 2006 designations were derived by selecting and copying applicable features from the 1:24,000 scale hydrography dataset. This dataset was automatically cataloged from the creator's Open Data Portal. In some cases, publication year and bounding coordinates shown here may be incorrect. Additional download formats may be available on the author's website. Please check the 'More details at' link for additional information.
Although this data is being distributed by the American Geographical Society Library at the University of Wisconsin-Milwaukee Libraries, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials.