
Pallon marks the entrance to the ancient glacial valley of Freissinières, enclosed behind a bar of hard rock. As they melted, the glaciers left behind a lake, trapped by this bar. It is said that this natural dam has been breached on numerous occasions. In the Middle Ages, suddenly released into the Gourfouran gorge, the water is said to have laid ruin to the village of Rame, standing on the plain.