On September 1, 1791, the regiment was re-formed as the Queen's Rangers under Colonel Commandant John Graves Simcoe.

[5] The Rangers soon gained a considerable reputation, particularly in the campaigning in upstate New York around Fort Ticonderoga and Lake Champlain.

They also launched a long-range raid to destroy Indian allies in the St. Lawrence valley, gained the first lodgement in the amphibious landings on Cape Breton to capture Louisbourg, and took the surrender of the French outposts in the upper Great Lakes after the war.

Robert Rogers again raised a unit, this time in New York (mostly from Loyalists living in Westchester and Long Island), from western Connecticut, and with men from the Queen's Loyal Virginia Regiment.

Eleven months later, on September 11, 1777, they distinguished themselves at the Battle of Brandywine, suffering many casualties while attacking entrenched American positions.

[3] John Graves Simcoe turned the Queen's Rangers into one of the most successful British regiments in the war.

In 1783, when the war was ended by the Treaty of Paris, the Queen's Rangers left New York for Nova Scotia, where it was disbanded.

[9] After 1791, when Simcoe was named lieutenant governor of the newly created Upper Canada, the Queen's Rangers was revived to form the core of the defence forces.