Mount Hood Summit -- June 2012 - tompickrell
The line of the hogsback is crossed by a bergschrund, a crevasse that separates the static, upper ice sheet from the lower, moving ice sheet.  The Bergschrund forces hikers to abandon the hogsback near the top to either go left toward the old chute route or right to a steeper climb up to a chute called the pearly gates.  I took this photo of the mouth of the Bergschrund, which has many odd, gnarled icicles shaped by water and wind.

The line of the hogsback is crossed by a bergschrund, a crevasse that separates the static, upper ice sheet from the lower, moving ice sheet. The Bergschrund forces hikers to abandon the hogsback near the top to either go left toward the old chute route or right to a steeper climb up to a chute called the pearly gates. I took this photo of the mouth of the Bergschrund, which has many odd, gnarled icicles shaped by water and wind.