couloir

Their tracks were visible on the snow at the top of the couloir.

None came, and we felt gratified at this confirmation of our judgment as to the safety of this part of the couloir.

Naturally, our trust in the rocks was gone, and we took as soon as possible to the steep snow of the couloir.

My hat blew off here, and rolled on its stiffened brim at a tremendous pace down a couloir of ice.

We ascended by the right-hand couloir, if I may so term it, and then made for the gap on the ridge at the extreme westerly end.