Gropenbornskopf
The Gropenbornskopf is a northern offshoot of the Aschentalshalbe in the Harz Mountains of central Germany, two kilometres east of Sieber in the district of Göttingen in the state of Lower Saxony. It is 581.2 metres high and was named after the Gropenborn stream that flows downs its western side, and which it initially divides from the River Sieber. Sources 
 Topographic map 1:25000, No. 4328 Bad Lauterberg im Harz

Hills of the Harz
Hills of Lower Saxony
Göttingen (district)