[1] It flows south to the Gulf of Saint Lawrence along the line that separates the cantons of Bellecourt and Saint-Vincent.

[2] It is 500 metres (1,600 ft) east of the village of Chevery, which is built on a point of sand and is accessible by boat from Harrington Harbour.

The Petit Mécatina Archipelago is a group of islands 3 kilometres (1.9 mi) southeast of the river mouth.

This was a monopoly for nine years on the Indian trade and seal fishery between the mouths of the Étamamiou and Nétagamiou rivers.

The site also holds the master's house and those of the employees, the store, warehouse and facilities for melting seal oil.

The catch declined in later years, but continued after Lafontaine's bankruptcy in 1754 and after the English took over, lasting until the end of the 19th century.

[12] In 2017 all salmon, large and small, had to be released on the Malbaie (Gaspé Peninsula), Pigou, Bouleau, Magpie, Coacoachou, Nétagamiou, Little Mecatina and Véco rivers.