It flows northeast through the municipalities of Sainte-Victoire-de-Sorel, Sorel-Tracy and Yamaska in the Pierre-De Saurel Regional County Municipality (MRC), in the administrative region of Montérégie, on the South Shore of Saint Lawrence River, in Quebec, Canada.

[1] The "Rivière Pot au Beurre" empties on the west bank of the Yamaska River, at the height of the northern tip of Île Saint-Jean.

[2] They are an indicator of the impermeability of the soil, which requires drainage, given that it is located in an area where agriculture is practiced intensively.

The cartographer Joseph Bouchette designated this watercourse "Rivière Pot au Beurre" in his "Topographical Description of the Province of Lower Canada (1815)".

[6] The toponym "Rivière Pot-au-Beurre" was officially registered on December 5, 1968, at the Commission de toponymie du Québec.