Bickelstein, Glacial erratic monument in Ehra-Lessien, Germany

Bickelstein is a feldspar granite erratic boulder located in Bickelsteiner Heide forest with dimensions spanning several meters. The rock surface displays carved markings created by hand tools.

The stone received its first documented mention in 1578 within a border description and appeared in a 1583 border agreement. These early records show that it served as an important boundary marker between territories.

Seven horseshoes and seven crosses, each about ten centimetres wide and one centimetre deep, are cut unevenly into the surface; their age and origin are unknown. They may mark a Germanic cult site for Wotan, the horseshoes standing for his horse Sleipnir, while the crosses could be heathen symbols or atonement crosses added after the Saxons' conversion. Waldgottesdienste are held here during the August heather bloom.

The boulder lies on a forest clearing about 200 metres east of Landesstraße 288 between Ehra-Lessien and Boitzenhagen, roughly four kilometres north-northeast of Ehra at about 94 metres above sea level. A signposted path leads to the stone. Annual forest services are held here during the heather bloom in August.

The name derives from Low German: inbicken means "to cut in", and a Bicke is a pick, so Bickelstein is the "hewn" or "engraved stone". The seven horseshoes and seven crosses, about 10 cm wide and 1 cm deep, are irregularly scattered over the surface; their age and origin are unknown.