Lac du Lou

This name comes from the patois lou which means lake. Formed when the glacier retreated into a depression hollowed out by this one upstream of a rock bar, the Lac de Lou reaches a depth of 17.50 m near the torrent of Revers. Depending on the flow rate of the torrent, its surface temperature varies during the summer from around 5 to 12 degrees. Two fish species have been introduced by the fishing company, the arctic char and the brown trout. The arctic char prefers to live at depth and reproduces naturally in the alpine lakes. The brown trout requires frequent rearing because, if left to develop normally, it dœs not find the conditions necessary for its reproduction. Not as common, the sculpin and minnow, probably brought in by fishermen, have settled in the lake. Well-thought out management is necessary for each species to find its food in this relatively poor and fragile environment.