The ruins of the rock castle called Fairy Rock (French: Rocher des Fées) are located in the municipality of Crans-Montana, Valais, Switzerland, between Mollens and Aminona, more precisely in a rock face at the hamlet Les Echerts. The ruins are rather well preserved, and can be easily admired from nearby. Due to its location in the rock, however, accessing the inside is difficult. The rock castle was built at the end of the 12th century, and was probably used as a refuge during the wars and raids of that period.