Great Lake (Tasmania)

Great Lake is a large, natural, glacial lake located in the Central Highlands of Tasmania, Australia. It is situated at an altitude of 1,030 metres (3,380 feet) above sea level and has a surface area of approximately 158 square kilometres (61 square miles), making it the largest freshwater lake in Tasmania.

The lake's primary outflow is through the Shannon River, which flows into the River Derwent. Great Lake's water levels are managed as part of Tasmania's hydroelectric power scheme, and it serves as a crucial water storage for power generation. Water is diverted from the lake to the Poatina Power Station through a series of canals and pipelines. Consequently, the lake's water level fluctuates significantly depending on rainfall and power demand.

Great Lake is a popular destination for fishing, particularly for brown trout and rainbow trout. The surrounding area is characterized by its rugged, alpine scenery and sparse vegetation. The climate is harsh, with cold winters and cool summers. Snowfall is common in the winter months. The lake is accessible by road, and several shack communities are located along its shores. These communities largely consist of holiday homes used by anglers and those seeking to enjoy the highland environment.