Mazinaw Lake, Lake in Lennox and Addington County, Canada

Mazinaw Lake is a long, narrow lake in Lennox and Addington County, Ontario, set among low hills and mixed forest. Its shoreline is mostly undeveloped, with rocky points and small bays, and the water runs deep close to the cliffs.

The lake was formed by glaciers that carved a deep channel through the rock. In the 19th century, logging and mining brought workers to the area, and some of the old trails are still used today.

The name comes from an Algonquin word for painted rock, and the cliffs along the lake are covered with red ochre images made by Indigenous people. Today, boaters often slow down near these cliffs to look at the markings from the water.

Access is mainly by boat or on foot via trails, and the water stays cold even in summer. Bring what you need, as services are limited, and check the weather before heading out on the water.

The cliffs hold one of the largest collections of Indigenous rock paintings in Canada, with hundreds of images. Many are visible only from the water, so a slow pass by boat is the best way to see them.