Fils (river)

The Fils is a river in Baden-Württemberg, Germany. It is a right tributary of the Neckar. The Fils is 63 km (39 mi) long.

Fils
Location
Country	Germany
Physical characteristics
Source
- location	Swabian Alb
Mouth
- location	Neckar
- coordinates	48°42′23″N 9°25′13″E
Length	62.9 km (39.1 mi)
Basin size	699 km2 (270 sq mi)
Basin features
Progression	Neckar→ Rhine→ North Sea
Tributaries
- right	Eyb, Lauter

Its source is in the Swabian Alb about two kilometers southwest of the town Wiesensteig. Its karst spring, the Filsursprung, is at 624.9 m above sea level in the Hasental valley. It flows into the Neckar at Plochingen, east of Stuttgart.