In 1760, during the French and Indian War, Massachusetts governor Thomas Pownall led the construction of a fort here, which he named Fort Pownall after himself. It was intended to secure the area for European settlement by driving off the remaining Norridgewock and Penobscot Indians. Commander of the fort was Jedidiah Preble. No battles ever took place at the fort. In 1775, British forces seized the cannons and powder. Later, a regiment of continental soldiers burnt the blockhouse and filled-in most of the ditches to prevent their use by the British.