The Dronne (French pronunciation:[dʁɔn], also Drône, [dʁon]; Occitan: Drona) is a 201-kilometre (125 mi) long river in southwestern France, right tributary of the Isle, which itself is a tributary of the Dordogne.[1] The source of the Dronne is in the north-western Massif Central, east of the town of Châlus (south-west of Limoges) at an elevation of 510 metres (1,670 ft). It flows south-west through the following départements and towns: