 With the end of the Revolutionary War in 1783, the British naval fleet on Lake Champlain retreated up to St. John’s.However, British troops garrisoned at Fort Dutchman's Point (North Hero, Vermont) and Fort au Fer (Champlain, New York) on Lake Champlain, did not leave until the 1796 Jay Treaty.Eager to take back control of Lake Champlain following the end of the Revolutionary War, Americans flocked to settle the Champlain Valley.