Chablais Trip

If you start from Geneva and drive to Thonon and Evian along Lake Leman through route N5, you will be passing through the areas of the Savoie called the Bas Chablais and the Chablais. The major geological landmark here is Lake Leman itself, which, in its small, narrow western end is called Lake Geneva because of the presence of the big city. Lake Leman is more than one quarter of a mile deep, some sixty miles long, and ten miles across, exactly where the thickest part of the Rhône glacier was embedded; it was formed by glacial ice sinking deep into the floor and melting there, and it stays filled because the Rhône River flows right through it.