 Together, these three sites provide a unique narrative of events that took place over 450 million years ago in the ocean in the Southern Hemisphere, long before Lake Champlain's emergence 20,000 years ago.The lake has long acted as a border between indigenous nations much as it is today between the states of New York and Vermont.The lake is located at the frontier between Abenaki and Mohawk (Iroquois Confederacy) traditional territories.