Bordanzan is said to be the home of the Arzinian Avatar that previously inhabited the Arzinian Mine in Keldagrim. Next to nothing is known of Bordanzan. While it may be a geographic location in Gielinor, it may possibly be another dimension or world. Some speculate it to be associated with Zaros, as the Arzinian Avatar's essence in the centre of the mine is surrounded by a symbol very similar to that of Zaros.