The Allagash River is a tributary of the Saint John River, approximately 65 miles (105 km) long, in northern Maine in the United States. It drains in a remote and scenic area of wilderness in the Maine North Woods north of Mount Katahdin. The name "Allagash" comes from the Abenaki language, a dialect of the Algonquin languages, spoken by the Penobscot Tribe The word, /walakéskʸihtəkʸ/, means "bark stream".The Allagash issues from Churchill Lake (formerly known as Heron Lake) at Churchill Depot in northern Piscataquis County. In its natural state, it also drained Allagash, Chamberlain, and Telos lakes, but in the ... Source: Wikipedia