Loir
| Loir | |
|---|---|
| The Loir in Lavardin | |
| Etymology | From Gaulish ledo, "flow" | 
| Nickname(s) | Loir sans E ("Loir-without-E") | 
| Native name | Le Loir (French) | 
| Location | |
| Country | France | 
| Physical characteristics | |
| Source | |
| • location | Perche | 
| • elevation | 150 m (490 ft) | 
| Mouth | |
|  • location | Sarthe | 
|  • coordinates | 47°33′27″N 0°31′35″W / 47.55750°N 0.52639°W | 
| Length | 319 km (198 mi) | 
| Basin size | 8,270 km2 (3,190 sq mi) | 
| Discharge | |
| • average | 33 m3/s (1,200 cu ft/s) | 
| Basin features | |
| Progression | Sarthe→ Maine→ Loire→ Atlantic Ocean | 
The Loir is a 319 km (198 mi) long river in western France. It is a left tributary of the Sarthe. Its source is in the Eure-et-Loir department, north of Illiers-Combray. It joins the river Sarthe in Briollay, north of the city of Angers.
It is indirectly a tributary of the Loire, and runs roughly parallel to it and slightly north of it for much of its length, and so might be regarded as a Yazoo type river.