라 오트 보움 최고의 라이딩 경로

Magnificent historic city, plan a day to visit Bouligons a few kilometers away towards Valdrôme.

magnificent little walk to do

Magnificent trout river

I regret not having taken the time to consult the signs of this major site.

On the edge of the Vercors plateaus, there are superb mountain roads that combine elevation and charming landscapes. The D 539 is one of them.

Very beautiful panorama on the Hautes Alpes side

Major geological site, classified as a Sensitive Natural Area, to be seen from the road or by stopping to take a closer look.

It all began in 1442 when a foundation broke away from the southern flank of Pic de Luc. As it slid, it hit a limestone spur, divided, broke into enormous blocks and blocked the Drôme at two points... thus two lakes were formed: the Petit downstream and the Grand upstream. The “Grand Lac” is 5 km long and arouses envy because it is full of fish. In 1561 it thus became the property of the Carthusians of Durban, monks to whom meat was forbidden. It was only in 1804 that a huge block, the “dad”, was pierced to let the water flow at the location of the current Saut de la Drôme. This vast dry body of water now gives way to an agricultural plain (ruined Bouligons farm and its formerly cultivated terraces) and the Bouligons marsh, the last vestige of the disappeared lake. The need to avoid the Claps during the construction of the “Briançonnais” railway line at the beginning of the 20th century also gave the site a magnificent viaduct, 244 m long and 44 m high.