Nelson Parish is bounded: • on the north by the
Southwest Miramichi River and
Miramichi River; • on the east, beginning at a cove northeasterly of the junction of Rasche Street and St. Patrick's Drive, by a line running southeasterly along the northeastern line of a grant to Thomas McCallum and its prolongation to a point from the
Kent County line; • on the south by a line seven miles from and parallel to the Kent County line; • on the west, beginning at a point about 2.25 kilometres west of North Lake, by a line running north 22º west through the mouth of the
Renous River; • including Barnaby Island in the Southwest Miramichi.
Evolution of boundaries When Nelson was erected it included a strip of Chatham and Glenelg Parishes that ran from the
Miramichi River to the modern
Kent County line, which included the Douglasfield and Chatham Head areas. The boundary with
Northesk Parish was a line running south 68º west The Northesk boundary was moved north to a line running west from Wilsons Point by the magnet of 1850. In 1856 the boundary with
Northesk Parish was changed back to the pre-1850 line. In 1859 all of Nelson north of the
Southwest Miramichi River, along with
Beaubears Island, was erected as Derby Parish. In 1881 all of Nelson within seven miles of the Kent County line was erected as Rogersville Parish. ==Communities==