It was Georges Bronner who discovered the Vieux Emosson deposit site 23rd August 1976.

While the geologist was on holiday in Vallorcine he went walking in the Mont-Blanc and Aiguilles Rouges mountains.

One day going down the Col du Corbeaux towards the lac du Vieux Emosson, he noticed strange shapes visible at the surface of a sandstone slab. Due to the exceptionally dry and hot summer of 1976, the névé had been mainly uncovered revealing the embedded tracks.

There were traces of "dinosaurs " and sedimentary strata (ripple marks, rain drop marks) dating from the Trias period 230 million years ago










The site is situated at 2400 m altitude in Switzerland half way between the refuge Loriaz and the Vieux Emosson hut.

Scientists from the department of geology and paleontology of the Natural History Museum of Geneva are on hand for the first 3 weeks of August to give walkers detailed information on this site which is the most important in Europe.

Ask the wardens for information on snow conditions.