Malaspina Glacier, Alaska

I thought this was worth sharing -- a fantastic image of the famous Malaspina Glacier in Alaska -- a classic example of a piedmont glacier in which the ice has poured out from a narrow trough in the mountains and has expanded into a great lobe on the marine foreland.  This glacier has been surging too -- as we can see from the zig-zag pattern of moraines on the ice surface.

The definition on this one (made from Landsat imagery) is amazing -- click to enlarge.