The main neighboring watersheds of Bras d'Hamel are: • north side:
Ha! Ha! River,
Bras du Coco,
Bras Rocheux,
Saguenay River; • east side: Ha! Ha! River,
Rivière des Cèdres,
Lake Ha! Ha!,
Malbaie River; • south side: Ha! Ha! River,
Lake Ha! Ha!,
rivière à Mars,
Bras de Ross,
rivière à Pierre; • west side:
Bras Rocheux,
Bras du Coco,
rivière à Mars,
rivière à Mars North-West,
rivière du Moulin. The Bras d'Hamel rises at the mouth of Girard Lake (altitude: ) in the
Laurentides Wildlife Reserve. This source is located at: • east of the course of the
rivière à Mars; • east of the
rivière à Pierre; • east of the dam at the mouth of
Lake Ha! Ha! which is crossed by the Ha! Ha! River; • south-west of a mountain peak which reaches ; • south of the confluence of Bras d'Hamel and Ha! Ha! River. From its source, the course of Bras d'Hamel flows over according to the following segments: • towards the northeast by forming a loop towards the north at the start of the segment to go around a mountain whose summit reaches and collecting the discharge (coming from the south) of an unidentified lake, to the outlet (coming from the south) of Lac Renouche; • to the north by collecting the outlet (coming from the west) from Lake Hervé, to the outlet (coming from the west) from Lake Rémis; • to the north in a deep valley, then passing the village of Ferland to the outlet (coming from the west) of a stream; • north-west along
route 381, to a bend corresponding to the outlet of
Bras Rocheux (coming from South); • northwards in agricultural area to its mouth. The Arm of Hamel flows onto the west bank of the Ha! Ha! River. This mouth is located at: • downstream of a dam on the Ha! Ha! River; • upstream of a road bridge spanning the Ha! Ha! River; • west of a bay in
lac des Cèdres; • north of the village center of Ferland (village); • south-east of the confluence of the Ha! Ha! River and
Baie des Ha! Ha!. From the confluence of "Bras d'Hamel", the current follows the course of the Ha! Ha! River on generally towards the northeast, crosses
Baie des Ha! Ha! on northeast, then follows the course of the
Saguenay River on east to
Tadoussac where it merges with the
Saint Lawrence estuary. == Toponymy ==