Its name simply means "long mountain" in German and was first mentioned between 1285 and 1296 as "silva Langenberg" and 1309 as "der Langenberch" as a part of the Goslar Cathedral chapter.

Chalk quarries can be dated back at least as early as the mid-18th century, where maps are showing little mining grounds on the eastern- and westernmost end of the hill.

[2] Additionally, the works of local geologist Wilhelm Castendyck between 1859 and 1861 revealed oolithic iron deposits, leading to the foundation of the Hansa Pit on the mountain's northern cliff in 1861.

[4] Nowadays, the Langenberg is a popular recreation center, offering many narrow hiking trails and a broad view onto both Harlingerode and the plains, villages, and hills to the north, and the Harz mountains along with the Brocken and Göttingerode to the south.

Although the quarry is still privately-owned and access to the public banned due to the lethal risks of its rims stretching several tens of meters into the depth without any protection, this place is visited illegally by motocross riders.