This shelter, kept from the end of June to the beginning of September (providing food and accommodation), remains open for self-catering for the rest of the year. Before becoming the property of the Vanoise National Park in 1972, it was a former alpine chalet which was built from materials extracted on site starting in 1932. It was home to the Alpage de la Martin for a period of thirty years during which Beaufort, Sérac and butter were produced.