Iberger Albertturm, Observation tower in Bad Grund, Germany

The Iberger Albertturm is a 34.6-metre observation tower on the south-west spur of the Iberg at 555 metres above sea level, about 400 metres from the summit. It has a steel-reinforced concrete shell and a forest restaurant beside it. From the top, the view takes in the Bad Grund valley to the south, the Clausthal-Zellerfeld plateau and the Brocken to the east, and the Markau valley to the west.

The tower was built between 1907 and 1908, replacing an older wooden structure from 1886. To protect the tower from weather damage, it received concrete reinforcement in 1955.

The tower functions as a checkpoint in the Harz hiking badge system, where hikers collect stamps to document their mountain tours. This location is part of a large hiking network that guides visitors through the region.

The tower stands on the southwestern spur of the Iberg at 555 m, about 400 m southwest of the summit, with the Waldgaststätte Iberger Albertturm next to it. The entrance to the Iberger Tropfsteinhöhle lies about 550 m away on the southeastern flank. The Harzer Baudensteig passes the tower, which is checkpoint no. 130 of the Harzer Wandernadel. No entrance fee is charged.

Every Sunday in June, July and often August, a snowman is built at the tower and then "executed" with a sword at 4 pm, after which a snowball fight begins. The snow is stored the previous winter in karst hollows in the Iberg's limestone, covered with brushwood and straw, when enough snow has fallen and the weather allows.