Coos, New Hampshire refers to the frontier area of northern

New Hampshire New Hampshire is a state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec to the nor ...

. During the

American Revolution The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revoluti ...

a military command was located at

Haverhill, New Hampshire Haverhill is a town in Grafton County, New Hampshire, United States. The population was 4,585 at the 2020 census. Haverhill includes the villages of Woodsville, Pike, and North Haverhill, the historic town center at Haverhill Corner, and the dis ...

to protect the

New Hampshire Grants The New Hampshire Grants or Benning Wentworth Grants were land grants made between 1749 and 1764 by the colonial governor of the Province of New Hampshire, Benning Wentworth. The land grants, totaling about 135 (including 131 towns), were made o ...

and to support military efforts in the invasion of

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

. The name was later given to a portion of northern Grafton County in 1803 when a new county, named Coos, was created. The location was originally a name associated with a part of the migratory

Abenaki The Abenaki ( Abenaki: ''Wαpánahki'') are an Indigenous peoples of the Northeastern Woodlands of Canada and the United States. They are an Algonquian-speaking people and part of the Wabanaki Confederacy. The Eastern Abenaki language was pre ...

tribe. The location was known before 1704 to have military significance for several provincial governments and the leaders in

New France New France (french: Nouvelle-France) was the area colonized by France in North America, beginning with the exploration of the Gulf of Saint Lawrence by Jacques Cartier in 1534 and ending with the cession of New France to Great Britain and Spa ...

. In 1755, a Fort Wentworth was to be constructed by

Rogers' Rangers Rogers' Rangers was a company of soldiers from the Province of New Hampshire raised by Major Robert Rogers and attached to the British Army during the Seven Years' War (French and Indian War). The unit was quickly adopted into the British army ...

at the junction of the Upper Ammonoosuc River with the Connecticut River in present-day Northumberland, New Hampshire. A river with a similar name, the Ammonoosuc River, flows through Grafton County, joining the Connecticut opposite Newbury, Vermont. The upper Coos refers to the area around

Lancaster, New Hampshire Lancaster is a town located along the Connecticut River in Coös County, New Hampshire, United States. The town is named after the city of Lancaster in England. As of the 2020 census, the town population was 3,218, the second largest in the coun ...

, the county seat of Coos County, and the lower Coos to Newbury, Vermont. The distance between these locations is approximately .

References

*
The Frontier In American History
by Frederick Jackson Turner *{{cite book, url=https://books.google.com/books?id=tY9Lxurlpu0C&dq=bayley%20newbury%20vermont&pg=RA1-PA76, title=History of Newbury, Vermont, first=Frederic P, last=Wells, publisher=The Caledonian Company, location=St. Johnsbury, VT, ref=Wells, year=1902, oclc=383086 Pre-statehood history of New Hampshire Pre-statehood history of Vermont New Hampshire in the American Revolution