Resource provided by UW-Madison Robinson Map Library. This data represents WIDNR classified trout locations in Wisconsin in 2015, and includes the layers 'WI_Classified_Trout_Polygon_2018', and 'WI_Classified_Trout_Lines_2018'.[Trout Waters are represented by Class I, Class II or Class III waters. These classes have specific ecological characteristics and management actions associated with them. For more information regarding Trout Classifications, see the Fisheries Trout Class Webpages. (https://dnr.wi.gov/topic/fishing/trout/streamclassification.html)]