mountain bivouac free sleeping shelter in the piedmontese alps italy, facing the mount viso

alpine alpinism alps altitude architecture bivacco bivouac camp clear climbing cottian day emergency enrico europe exterior facing famous france free grass hike hiking italy landscape longet maritime mercantuor monviso mount mountain mountaineering nature olivero outdoor park pass peak peaks piedmont piedmontese refuge rescue rocks safe scouting shelter sky sleeping spring stones summer sunny trekking view viso