The Aschentalshalbe is a ridge in the Harz Mountains of Germany that is up to 685 m above sea level (NN)[1].

[2] It lies south of the village of Sieber in the unincorporated area of Harz in the district of Göttingen in the state of Lower Saxony.

It rises between the Gropenbornskopf to the north, the Koboltstaler Köpfe to the northeast with their outlier, the Gödeckenkopf, to the east, the Schadenbeeksköpfe to the southeast, the Übelsberg to the south, the Großer Knollen to the south-southwest, the Pagelsburg to the southwest, the Adlersberg to the west and the Breitentalskopf to the northwest.

The watershed between the Sieber to the north and west and the Oder to the east and south runs over the Aschentalshalbe.

There is a refuge hut with the Schadenbeeksköpfe checkpoint of the Harzer Wandernadel hiking network near the eastern summit of the Aschentalshalbe.