detail of the arch dam. lac d`mosson is a reservoir in the canton of valais, switzerland. it is located in the municipalities of s

alpine alps arch auvergnerhnealpes beautiful blue canton chamonixmontblanc clouds commune dam day department detail dmosson europe finhaut forest france green hautesavoie lac lake landscape located mountain mountains municipalities nature outdoor panorama region reservoir salvan scenery scenic sky southeastern summer switzerland tourism travel valais valley view water waterfall