Rainy Lake-South, Ontario 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. This body of water is destined to become one of the finest fishing resources in North America. Resting on the MinnesotaOntario border, it boasts a major walleye fishery in addition to a premier smallmouth bass population. This map includes Black Bay, Big Island, Swell Bay and Seine Bay Featured Species Walleye Smallmouth