The course of the North-East Saint-Jean river descends from the north, between the Mingan River and Mingan North-West River, as well as the Saint-Jean River. The Saint-Jean Nord-Est River has its source at Charpeney Lake, enclosed between the mountains, in the unorganized territory of Lac-Jérôme. This lake has two parts separated from each other by the Kauapauakaht Pass. This lake is fed in particular by five discharges of streams, by the discharge of the Fauteux lake, at:
southeast of the boundary between Labrador and Quebec;
north of the mouth of the Rivière Saint-Jean Nord-Est;
From the mouth of Charpeney Lake, the course of the Saint-Jean Northeast River descends on, with a drop of, depending on the segments following: Upper course of the Saint John River Northeast
towards the north, crossing consecutively a first lake ; a second lake ; a third lake and collects a stream, up to its mouth;
first to the north in an increasingly deep valley, up to a bend in the river; then east across the Portage Kapapuanapestshepant, as well as across a lake formed by the widening of the river, to its mouth. Note: this lake receives the discharge of Lac des Caps;
Intermediate course of the North-East Saint-Jean River
first east to a bend in the river; then to the south, crossing successively three bodies of water whose altitude of the first two is and the last which is rather misshapen, up to the mouth of the latter. In this segment, the river collects the discharge of a set of lakes; while the third lake receives on the east side the discharge of a set of lakes;
towards the south-east in a deep valley, first forming an easterly curve around a mountain, collecting the discharge of two lakes, crossing a few series of rapids to a bend in the river where the current bypasses two islands, then southwards crossing a lake, up to its mouth;
towards the south-east in a deep valley, passing the west side of Mount Uhukanatshehu, collecting the discharge of a set of lakes, collecting a stream, collecting the discharge of a lake, collecting the discharge of a lake, curving towards the south where it crosses a few series of rapids, then south-west, to the confluence of the brook of Antan ;
southward in a deep valley, collecting a stream, collecting a stream, collecting discharge of a set of lakes, and collecting discharge of some small lakes, up to a river bend ;
towards the south-west collecting 4 streams, collecting 3 discharges from lakes ; forming a loop to the north,
first towards the west collecting the discharge of some small lakes, as well as a stream ; then to the south-west, collecting the discharge of two small lakes, crossing the Kakahtshekauh Rapids, forming a loop to the south; collecting a small river, up to the confluence of a river ;
Lower St. John River Northeast
towards the south first in a small forest valley, then in a deep valley, collecting a stream, passing at the foot of the Kaiamehenant Cliff, collecting the discharge of two lakes, curving towards the southwest, collecting the discharge of two lakes, passing the place - said Uhukanatshehu, up to a bend in the river;
first towards the south, first forming a curve towards the west, in a deep valley, collecting the discharge of some lakes, passing the Elbow Kanatuapiaht, collecting discharge of a lake, forming a small hook to the west, collecting a stream, collecting the Uhtshisk stream, forming a loop west near the end of the segment, to the river? ;
southward in a deep valley, forming a large loop eastward around a mountain, crossing a series of rapids, to its mouth.
The Rivière Saint-Jean Nord-Est flows into a bend in the river on the north bank of the Rivière Saint-Jean. This confluence is located at:
northwest of the center of the village of Havre-Saint-Pierre;
From this confluence, the current descends the Saint John River on towards the south to flow on the north shore of the Gulf of St. Lawrence, that is to say in the Jacques Cartier Strait.
