Manicouagan Reservoir /

Manicouagan Reservoir (also Lake Manicouagan) is an annular lake in central Quebec, Canada. The lake covers an area of 1,942 km², and its eastern shore is accessible via Route 389. The island in the centre of the lake is known as René-Levasseur Island, and its highest point is Mount Babel. The lake and island are clearly seen from space and are sometimes called the "eye of Quebec." With a volume of 139.8 cubic kilometres (33.5 cu mi), the reservoir itself is the fifth largest in the world by volume, although only 35.2 cubic kilometres (8.4 cu mi) can be used for hydro-electric power production. In 2007, the reservoir was astronaut Marc Garneau's nomination for the CBC's Seven Wonders of Canada competition. Manicouagan Reservoir lies within the remnant of an ancient eroded impact crater (astrobleme). The crater was formed following the impact of a 5 kilometres (3.1 mi) diameter asteroid which excavated a crater originally about 100 km (62 mi) wide although erosion and deposition of sediments have since reduced the visible diameter to about 72 km (45 mi). It is the fifth-largest confirmed impact crater known on earth. Mount Babel is interpreted as the central peak of the crater,