Mazinaw Lake – Upper and Lower

Mazinaw Lake is a long, narrow lake in Eastern Ontario, best known for its striking setting with part of it being within Bon Echo Provincial Park. Stretching about 14 kilometres, it features rugged Canadian Shield shoreline and the iconic Mazinaw Rock, which rises nearly 100 metres above the water. The lake is also exceptionally deep, reaching depths of roughly 145 metres (475 feet), making it one of Ontario’s deepest inland lakes.

From the north, the Mississippi River enters Upper Mazinaw Lake through the underpass at Addington Road 5, and south via the Mazinaw River into the Moira River system, though it is not part of a large, navigable waterway network. Fishing is a major draw, with lake trout thriving in the deep, cold waters, alongside smallmouth bass, northern pike, and perch.

Nearby, the village of Cloyne offers basic amenities, with Northbrook and Kaladar a short drive away, making the area both scenic and accessible for visitors.

Adjoining waterways: Mississippi River