Yes, fishing is allowed everywhere on the river. A fishing license is required and can be purchased online through the Wisconsin. The lower Wisconsin River is popular with local fishermen, especially right below the dam in Prairie Du Sac. Because it is connected to the Mississippi River, southern and western species of fish are able to move through the lower Wisconsin River resulting in 84 known species of fish in the basin. The main channel has a lot of game fish including walleye, sauger, catfish, smallmouth bass and northern pike while the backwater sloughs typically have bluegill, bullhead, crappie, largemouth bass, northern pike and dogfish. There are significant numbers of panfish including bluegills, crappie, white bass and rock bass. It’s not uncommon to also find suckers, freshwater drum (sheepshead), American eel, longnose gar, carp, musky, sturgeon, and paddlefish. The 3.5 miles stretch of the river immediately downstream of the dam at Prairie du Sac is heavily influenced by the dam and is not typical of the rest of the river. The fish population in this stretch below the dam is typical of tail water areas below dams on major rivers where seasonal migration upstream is blocked.