Coordinates : 45°3'8"N 4°23'44"E
45°3.133 N 4°23.733 E
At the entrance to the Lake Devesset Recreation area.
The area where the lake is today was formerly the parachute drop zone 'Tandem', utilized starting in June 1944 by Special Forces Unit No. 4 to receive the heaviest arms deliveries destined for the Resistance in Ardeche, allies missions, and in July 1944 the two American operational groups Louise and Betsy.