The Aroostook River rises in
Piscataquis County and flows through
Aroostook County. It later joins the
St John River in
New Brunswick, Canada. Its length is about 120 miles. The river gives its name to an agricultural region that is particularly noted for its potatoes. In 1837, the Aroostook War resulted in a boundary dispute between Maine and New Brunswick.
Winfield Scott arranged a truce until the matter was permanently settled by the Webster-Ashburton Treaty.
