Balsam Lake is the highest point along the Trent-Severn Waterway. On the west side, water flows westward into the Severn system. On the east side, it flows eastward into Cameron Lake. The lake receives water from the Canadian shield in the north and from the lands immediately surrounding the lake, including the Staples River subwatershed.
The lake is located in the Kawartha lakes region of south central Ontario, Canada. It is 16 km long and averages 3 km wide, though its actual width varies due to the many large bays the carve its shoreline. The Gull River empties into it.
The village of Coboconk, Ontario is located on the north side of the lake. Balsam Lake Provincial Park is also located on the lake.
The lake offers excellent fishing for bass, walleye, and muskie. Mackenzie Bay in West Bay is a popular spot for boats to congregate on a warm summer day.
The Balsam Lake Association Inc (BLA) was formed in 1970 and is now one of the largest cottagers associations in the Kawartha Lakes representing the interests of cottagers and waterfront residents.
Membership is open to the lake Road Associations and permanent and seasonal residents.