Rimberg, Mountain peak in Dautphetal and Lahntal, Germany

Rimberg is a 497.1 m high mountain in the Gladenbach Uplands, the highest of the Damshausen Kuppen. Its summit, on the Dautphetal-Damshausen boundary, is topped by the 24 m Rimbergturm, a steel lookout tower with four platforms reached by 105 steps. Dense forest covers the rounded peak, while dry golden grass fills the foreground below.

The summit straddles the old border between Hesse-Darmstadt and Kurhessen: the western part belonged to the Biedenkopf district until 1866, the eastern to the Marburg district. The first 18-metre wooden lookout tower, built around 1900, was destroyed by a storm on the night of 22 November 1971. Its 24-metre successor was inaugurated on 30 April 1977.

The name Rimberg comes from the panoramic view: in the South Hessian dialect rim-di-dim means "all around", and an older name, Calantra, means "cold tree", referring to exposed trees at high altitude. Caldern takes its name from the mountain. The 24 m Rimbergturm, inaugurated on 30 April 1977, replaced an 18 m wooden tower built around 1900 that was destroyed by a storm on the night of 22 November 1971.

Marked trails climb from several different starting points, each offering varying difficulty levels and distances to suit different visitors. The tower at the summit is open during operating hours and allows visitors to view the surrounding landscape in all directions.

The summit sits almost exactly on the boundary between the former Biedenkopf district, which belonged to Hesse-Darmstadt until 1866, and the old Marburg district, part of Electoral Hesse until 1866. Locals called the mountain a "Zankapfel" (bone of contention) because of this split. The 24 m tower, inaugurated on 30 April 1977, replaced an 18 m wooden tower from around 1900 that a storm destroyed on the night of 22 November 1971.