The Krummbach is a left tributary of the Dreisam in the Southern Black Forest east of Freiburg im Breisgau in the German state of Baden-Württemberg. It is just under 17 kilometres long, In its upper reaches it is better known as the Zastlerbach; in its middle course it is also known as the Osterbach.

Krummbach
The upper Zastler valley seen from the Feldberg
Location
Country	Germany
State	Baden-Württemberg
Reference no.	DE: 2338832
Physical characteristics
Source
• location	Into the Zastler Loch at Feldberg
• coordinates	47°52′27″N 8°00′52″E
• elevation	ca. 1,445 m above sea level (NN)
Mouth
• location	into the Dreisam
• coordinates	47°58′48″N 7°55′05″E
• elevation	ca. 329 m above sea level (NN)
Length	17.0 km (10.6 mi) [1]
Basin size	30.99 km2 [2]
Discharge
• location	[3] at its mouth
• average	1.0 m3/s
Basin features
Progression	Dreisam→ Elz→ Rhine→ North Sea
Landmarks	Villages: Oberried, Kirchzarten
Tributaries
• left	Stollenbach
• right	Weilersbächle

References

External links

Wikimedia Commons has media related to Krummbach (Dreisam).

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