Chiascio
| Chiascio | |
|---|---|
| Chiascio | |
| Location | |
| Country | Umbria, Italy | 
| Physical characteristics | |
| Source | |
| • location | Monte Cucco | 
| • elevation | 850 m (2,790 ft) | 
| Mouth | Tiber | 
|  • location | Torgiano | 
|  • coordinates | 43°01′06″N 12°25′50″E / 43.01833°N 12.43056°E | 
| Length | 95 km (59 mi) | 
| Basin size | 1,962 km2 (758 sq mi) | 
| Discharge | |
| • average | 20 m3/s (710 cu ft/s) | 
| Basin features | |
| Progression | Tiber→ Tyrrhenian Sea | 
The Chiascio is a river of Umbria, central Italy. It is a left tributary of the Tiber. It is 95 km long, and its drainage basin covers 1962 km2. Its largest tributary is the Topino, which covers 60% of its drainage basin.