The Manicouagan Reservoir is a large, circular lake located in northeastern Quebec, Canada. It was formed by the impact of a meteorite about 214 million years ago, creating a unique geological structure. The reservoir is part of the Manicouagan River system and serves as a crucial source of hydroelectric power for the region. Covering an area of approximately 1,942 square kilometers, the reservoir is one of the largest in the world. It is surrounded by the Manicouagan-Uapishka Biosphere Reserve, which is home to diverse wildlife and ecosystems. The reservoir also plays a significant role in local recreation and tourism activities.