The Wisconsin Department of Natural Resources is hosting a Free Fishing Weekend Jan. 20 – 21. No fishing license or trout and salmon stamps are required. Anglers can fish in state waters where there is an open fishing season. All other fishing regulations apply, including limits on the size and number of fish that can be kept and any seasons when anglers must release certain fish species. Anglers cannot fish spring trout ponds during the winter Free Fishing Weekend.