Bras de Bronne

LocationCountryFrancePhysical characteristicsSource  • locationArtois Mouth Canche50°27′9″N 1°49′14″E / 50.45250°N 1.82056°E / 50.45250; 1.82056Length11 km (6.8 mi)Basin featuresProgressionCanche→ English Channel

The Bras de Bronne (sometimes spelled Bras de Brosne) is a small river in northern France whose 10.8 km (6.7 mi) course crosses the departement of the Pas-de-Calais.^[1] Its source is at the hamlet of Etreuille, near the village of Saint-Michel-sous-Bois. It flows through the communes of Humbert, Sempy, Aix-en-Issart, Marant, Marenla and joins the river Canche at Marles-sur-Canche.
In winter, it is fed by an even smaller river at the commune of Quilen.
There's an ancient watermill at Sempy.