Southeast Region: Juneau On the cliffs of Douglas Island, in Juneau Harbor, mineralogist Charles Palache found eighteen fossil species, including a species of Pleistocene coral formerly unknown to science. When he uncovered several fossil species previously seen only to the north of Juneau, he theorized that the region's relatively mild climate had once been much colder.

Illustrations of Eocene Mollusca, fossil specimens collected by the Harriman Expedition. (top)