| Auf dem Acker | |
|---|---|
 The Reitstieg path on the Acker | |
| Highest point | |
| Elevation | 865.1 m above sea level (NN) (2,838 ft) |
| Prominence | 58.6 m ↓ Near Stieglitzecke → Bruchberg |
| Isolation | 3.2 km → Bruchberg |
| Coordinates | 51°44′56″N 10°26′43″E / 51.7488°N 10.4453°E |
| Geography | |
  Auf dem Acker | |
| Parent range | Harz Mountains |
| Geology | |
| Mountain type | Acker Bruchberg Quartzite |
Auf dem Acker (commonly called the Acker) is a mountain ridge up to 865.1 m (2,838 ft) high, which is located in the southwestern part of the Harz mountains in Lower Saxony (Germany).