Lake Memphrémagog is a large freshwater lake located in the Eastern Townships of Quebec, Canada, and extends into the state of Vermont, USA. It spans approximately 21 miles (34 kilometers) in length and is known for its scenic beauty, surrounded by mountains and forests. The lake is a popular destination for recreational activities such as boating, fishing, and swimming. The lake is fed by several rivers and streams, including the Magog River, which flows into the St. Lawrence River. It is also home to diverse wildlife and various fish species, making it an important ecological area. The town of Magog lies at the northern tip of the lake, offering amenities and services for visitors.