| Große Steinau | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Lower Saxony |
| Subdivision Type3: | Location |
| Subdivision Name3: | Göttingen district |
| Length: | 7.8km (04.8miles) |
| Source1 Location: | Near the Sophienklippe on the Acker |
| Mouth Location: | South of Aschenhütte into the Sieber |
| Custom Label: | References |
The Große Steinau is a river of Lower Saxony, Germany.
It is a 7.8adj=midNaNadj=mid tributary of the Sieber, north of Herzberg am Harz in the district of Göttingen. It rises at about 690 metres near the crags of the Sophienklippe on the Acker. It initially flows in a southwesterly direction, but later swings south before discharging into the Sieber near the small settlement of Aschenhütte, not far from the mouth of the Kleine Steinau. In times of drought the water of the Große Steinau seeps completely into the karst ground before its mouth and reappears about 4 days later at the Rhume Spring. An abandoned village, Steynowe, was probably located in the lower valley of the Große Steinau, but its exact location has not been found.