What are the main parts of a hydropower facility? How does it work? You’ll find out when you visit Jean-Lesage generating station and one of the world’s largest gravity dams ! You’ll see a 400-tonne rotor spinning over your head and feel the immense power of the eight generating units. Be sure to visit the Georges Dor building to see an exhibition about 735-kV transmission lines, the technology that revolutionized electricity transmission around the world. You won’t want to miss it! Only 20 minutes from Baie-Comeau. Important: Visitors must comply with certain obligations. Be sure to read the Schedule and practical information section of the site's website.