Device for setting off an avalanche, comprising a support intended to be fixed to the mounting side, for example on a concrete slab, and an enclosure one end of which is open, this enclosure being mounted on the support, {HEAD ~ said open end} of the enclosure being intended to face towards {TAIL ~ the snow cap} 
Device for setting off an avalanche , comprising a support intended to be fixed to the mounting side , for example on a concrete slab , and an enclosure one end of which is open , this enclosure being mounted on the support , { HEAD ~ said open end } of the enclosure being intended to face towards { TAIL ~ the snow cap }
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