This is a classic example of a hanging glacier. A hanging glacier is one that is perched on the top or on the side of a mountain and does not reach to the bottom of the cliff or slope. It can be very precarious to stay below such a feature because there is always the possibility of movement in the ice that can trigger a large ice fall. This is another example of the fabulous Alaskan glaciers along the coast in the fjords. These are very complex structures and evolve over time. If this glacier were to expand, it would likely splint into two separate arms coming down the mountain on the left and right in this photo. The distances and sizes in these photos are misleading and it is hard to get any perspective, but this glacier is probably a couple of miles across.
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