A part of the Glacier Bay National Park and Preserve, its water is regularly blocked by an ice dam. When such a dam breaks in a glacial lake outburst flood, much of the lake's water is propelled into Dundas Bay, along with trees, ice chunks, and sediment. This has happened in 1994, 1997, 1998, 2000, 2001, 2005, and again in September 2006.KINY Radio – Juneau Daily News – Latest Edition
