Fort Ticonderoga is the core of a strategic complex controlling passage on Lake Champlain and Lake George. Key “dependencies” of the 18th-century fort are Mount Defiance, Mount Hope, and Mount Independence. Each of the three played a significant role during the American Revolution. Since 1909, the Fort Ticonderoga Association has gradually been able to acquire the three mounts as adjuncts to its preservation efforts centered interpreting the entirety of Ticonderoga's history. Thus, since 1977, the three historic dependencies of Fort Ticonderoga have been reunited under the Association’s stewardship. Other places, such as the Carillon Battlefield, hold significance for the events that took place on them that altered Ticonderoga’s landscape forever.