The location from which Arash fired his arrow varies as well. In the Avesta (which does not mention places in Western Iran), it is Airyo.khshaotha, an unidentified location in the Middle Clime. Islamic-era sources typically place the location of the shot somewhere just south of the Caspian Sea, variously in Tabaristan (Tabari, Talebi, Maqdesi, Ibn al-Athir, Marashi) and (al-Biruni, Gardēzī); Amol fortress (Mojmal); Mount Damavand (Balami) or Sari (Gorgani). The place the arrow landed is variously identified as 'Mount Khvanvant' in the Avesta (likewise an unknown location); a river in Balkh (Tabari, al-Atir); east of Balkh (Talebi); Bactria/Tokharistan (Maqdesi, Gardizi); the banks of the Oxus River (Balami) or Merv (Mojmal). According to al-Biruni, it hit a walnut tree between Fargana and Tabaristan in the furthest reaches of [Greater] Khorasan.