Couloirs are especially significant in winter months when they may be filled in with snow or ice, and become much more noticeable than in warmer months when most of the snow and ice may recede. These physical features make the use of couloirs popular for both mountaineering and extreme skiing.
Couloirs are particularly important in winter months when they might be covered by snow or ice, making them much more apparent than in warmer months when most of the snow and ice typically melts. These physical features make couloirs popular for both mountaineering and extreme skiing.