Adams' Rangers, also known as Adams’ Company of Rangers, were a British Loyalist local volunteer corps and independent military company raised to support the British Army during the American Revolutionary War. Led by Dr. Samuel Adams of Arlington, New Hampshire Grants (now Vermont), the Rangers made their most significant contribution to the British war effort by serving with the ill-fated Burgoyne Expedition in the Saratoga campaign of 1777. The soldiers of Adams's Rangers were recruited primarily from the region of the New Hampshire Grants (also known by the Patriots as the Republic of Vermont), with the largest number of recruits coming from Arlington under heavy opposition from the majority Patriot population and their old enemies, the Patriot Green Mountain Boys. After the British Army's defeat and surrender at Saratoga, Adams' Rangers and other Loyalist units were allowed to retreat to the Province of Quebec.