Information for fly fishing the Beaver River in Southern Ontario. Mainly looked at as a cold water stream, the Beaver river and its pristine tributaries are host to several species of trout and salmon as well as bass and other warm water species in the lower sections. The Beaver River in southern Ontario flows from the Niagara Escarpment and empties into Nottawasaga Bay, an inlet of Georgian Bay, at the town of Thornbury, Ontario. A fish ladder near Thornbury allows migratory fish such as trout and salmon species to reach spawning areas up river. Flowing through The Beaver Valley, which is a deep wedge on the western side of the Niagara escarpment, formed by a much larger ancestor of this