Artist: Jim Mackovjak

1,500 years ago ice dammed the east arm of Glacier Bay and a huge freshwater lake formed in what is now the Adams Inlet area. Sediments were deposited into this lake, which lasted for several centuries starting about 1,700 years BP. Today the ice is gone and erosion due to wind and rain is carving the lake sediments into these hills, exposing layers that were once the lake's bottom and deltas built into it.