Grumbach (Innerste)
| Grumbach | |
|---|---|
| Location | |
| Country | Germany | 
| States | Lower Saxony | 
| Physical characteristics | |
| Mouth | |
 • location  | Innerste | 
 • coordinates  | 51°49′43″N 10°16′54″E / 51.8286°N 10.2817°E | 
| Basin features | |
| Progression | Innerste→ Leine→ Aller→ Weser→ North Sea | 
Grumbach is a river of Lower Saxony, Germany. It flows into the Innerste in Wildemann.