The Drôme is a 57.9 km long river in Normandy. Its source is on the border of the Manche and Calvados departments, at le Grand Cauville locality, near Saint-Martin-des-BesacesLes géoservices du Conseil général du Calvados - La carte dynamique |accessdate= 12 August 2010 Couches Cours d'eau BDCarthage, Communes et Communes (Libellé) activées. and joins the Aure, left bank at Maisons, downstream of Bayeux in the Bessin region. It is a sub-affluent of the Vire.
Watershed The watershed of the Drôme neighbours those of the Vire, Aure (east), Tortonne (NW) and Seulles (SE).
It is a narrow, northward basin. The longest of its affluents is the ruisseau du Vey (7.3 km), which it joins at Cormolain.
Drôme valley
Castle (ranked monument historiqueBase Mérimée) and Saint-Martin de Balleroy Church (ranked) at Balleroy, Pont de Sully (inscrit) between Castillon and Vaubadon. Manoir du Pont-Senot (inscrit) à Noron-la-Poterie. Église Notre-Dame de Ranchy (clocher inscrit). Château de Barbeville (inscrit). Castle (inscrit) and Église Saint-Cyr-et-Sainte-Julitte (inscrite) at Vaucelles. Église Notre-Dame-de-la-Nativité at Sully (inscrite).
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