Knüllgebirge or Knüll is a small mountain range in Hesse

Hesse

Hesse or Hessia is both a cultural region of Germany and the name of an individual German state.* The cultural region of Hesse includes both the State of Hesse and the area known as Rhenish Hesse in the neighbouring Rhineland-Palatinate state...

, Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

. It is located in the Northern part of Hesse

Hesse

Hesse or Hessia is both a cultural region of Germany and the name of an individual German state.* The cultural region of Hesse includes both the State of Hesse and the area known as Rhenish Hesse in the neighbouring Rhineland-Palatinate state...

 approximately 45 km South of Kassel

Kassel

Kassel is a town located on the Fulda River in northern Hesse, Germany. It is the administrative seat of the Kassel Regierungsbezirk and the Kreis of the same name and has approximately 195,000 inhabitants.- History :...

, its highest peak is the Eisenberg having an altitude of 636 m. Its area has a rather low population density (compared to neighbouring regions) and is heavily forested. The principal town of the region is Schwarzenborn

Schwarzenborn, Hesse

-Location:Schwarzenborn lies in the Schwalm-Eder district some 13.5 km from Homberg in the Knüll. Through the constituent community of Grebenhagen flows the river Efze.-Coat of arms:...

 with a population of 1158 (2006), which is also the site of some German army headquarters.