snow bridge

With the crawling, for instance, Bradey had been on top of a snow bridge that crossed a crevasse.

Along one after another of these I dragged the sledge until a spot was reached where the snow-bridge looked to be firm.

On either hand the rift of the crevasse extended, and above was the small hole in the snow bridge through which I had shot.

The danger lay in getting the sledge and one, two, or all of us on a weak snow-bridge at the same time.

One snow-bridge, ten feet wide, fell in as the meter following the twelve-foot sledge was going over behind it.

This cleft had been spanned by a snow bridge, now broken, and to the edge of which footsteps could be traced.