Arrived at the top of this slope, we found that we were cut off from the peak by a formidable Bergschrund, crossed by the rottenest of snow-bridges.
"The Ascent of the Matterhorn"
Edward Whymper
We looked for some time in vain, for a mighty Bergschrund effectually prevented approach, and, like a fortress' moat, protected the wall from assault.
"The Ascent of the Matterhorn"
Edward Whymper
A Bergschrund is frequently, although not always, a big crevasse.
"The Ascent of the Matterhorn"
Edward Whymper