| Derjon | |
|---|---|
 | |
 | |
| Location | |
| Country | Italy |
| Physical characteristics | |
| Source | |
| • location | Sellajoch, South Tyrol, Italy |
| • coordinates | 46°31′4″N 11°45′20″E / 46.51778°N 11.75556°E |
| • elevation | 1,470 m (4,820 ft) |
| Mouth | Eisack |
• location | Waidbruck, South Tyrol, Italy |
• coordinates | 46°35′58″N 11°31′52″E / 46.59944°N 11.53111°E |
| Length | 25.8 km (16.0 mi) |
| Basin size | 199 km2 (77 sq mi) |
| Basin features | |
| Progression | Eisack→ Adige→ Adriatic Sea |
The Derjon (Ladin: Derjon; Italian: Rio Gardena; German: Grödner Bach) is a stream in South Tyrol, Italy.