Just below him lay the longest ice-slope, or couloir, he had hitherto encountered.
A few minutes more, and he stood at the foot of the couloir.
We climbed down into the couloir: the ice was furrowed by avalanches.
In a quarter of an hour we were on the other side of the couloir.
We resolved, then, to risk the short stretch across the couloir.
We reached the rocks to the right of the couloir and climbed them for some distance.
Soon after this we quitted our ridge and dropped into a couloir to the left of it.
Bruce and the Gurkhas were below the rib, and could only see up the couloir.
Their tracks were visible on the snow at the top of the couloir.
The party had gained a considerable height on the mountain when it became necessary to cross a couloir or gully filled with snow.