The island-dotted waters of Big Lake comprise part of the West Branch of the St. Croix River. Several public boat launching sites are available; the most popular is at Greenlaw Chopping Landing.Featured Species:Brown Trout, Lake Trout, Brook Trout, Smallmouth Bass, Largemouth Bass, Black Crappie, Chain Pickerel Map Features:Waterway Profile, Accesses, Fishery Information, Contour Lines