Lake Monroe, Indiana Fishing Map Fishing Hot Spots sets the standard for others to follow. Its the map successful anglers have asked for by name for more than two decades. Lake Monroe is Indianas largest lake and produces more trophy largemouth bass than any other lake in Indiana. Crappie are abundant and attract a lot of attention. A quality catfish population is widely ignored. Featured Species Largemouth Bass Walleye Hybrid Striped Bass Channel Catfish White Crappie Other Catfish Map features