[1] It is located in the Harz National Park immediately north of Sankt Andreasberg.

In addition, in the region of the summit a marsh biotope has been created by artificial water damming.

Higher up is the Rehberger Planweg which takes walkers and cross-country skiers around the mountain.

[1] Due to its location and the lack of habitation on and around the Rehberg, it has an almost natural dark night sky with a surface brightness of 21.75 mag/arcsec².

[4] For this reason the Sankt Andreasberg Observatory Society (Sternwarte Sankt Andreasberg e. V.) selected a building on the southwestern part of the mountain as the site for its barrier-free observatory.