Rognon (Marne)
| Rognon | |
|---|---|
| Location | |
| Country | France | 
| Physical characteristics | |
| Mouth | Marne | 
|  • location | Mussey-sur-Marne | 
|  • coordinates | 48°22′33″N 5°09′41″E / 48.3757°N 5.1614°E | 
| Length | 73 km (45 mi) | 
| Basin features | |
| Progression | Marne→ Seine→ English Channel | 
The Rognon (French pronunciation: [ʁɔɲɔ̃] ⓘ) is a 73 km long river in France, right tributary of the Marne. Its source is near the village Is-en-Bassigny. It flows generally northwest, through the department of Haute-Marne. The Rognon flows into the Marne at Mussey-sur-Marne, south of Joinville. Its largest tributary is the Sueurre.