This park on the coast of southeast Alaska offers snowy mountain peaks, narrow fjords, bays, harbors, scattered islands, a temperate rainforest of spruces and hemlocks, and numerous glaciers. Two hundred years ago, the area was covered by a glacier more than 4,000 feet thick that extended more than 100 miles to the St. Elias Mountain Range. By the 20th century, it had drawn back 65 miles from the bay's mouth. This is the most rapid glacial retreat ever recorded. Today, icebergs continue to break off into the bay.