Eaulne
| Eaulne | |
|---|---|
| The Eaulne at Ancourt | |
| Location | |
| Country | France | 
| Physical characteristics | |
| Source | |
| • location | Pays de Caux | 
| • elevation | 140 m (460 ft) | 
| Mouth | |
|  • location | Arques | 
|  • coordinates | 49°53′31″N 1°07′49″E / 49.8919°N 1.1302°E | 
| Length | 45.5 km (28.3 mi) | 
| Basin size | 318 km2 (123 sq mi) | 
| Discharge | |
| • average | 3.3 m3/s (120 cu ft/s) | 
| Basin features | |
| Progression | Arques→ English Channel | 
The river Eaulne (French pronunciation: [o(l)n]) is one of the rivers that flow from the plateau of the eastern Pays de Caux in the Seine-Maritime département of Normandy in northern France. It is 45.5 km (28.3 mi) long.
The Eaulne's source is at Mortemer. It then flows northwestwards through Sainte-Beuve-en-Rivière, Saint-Germain-sur-Eaulne, Londinières, Douvrend, Envermeu, turning westward at Bellengreville and on to Ancourt, Martin-Église and joins the river Arques at Arques-la-Bataille.