Thirteenth of Tir(4th month in Persian calendar), which has been called by Iranians from thousands of years ago as a day to celebrate an old cultural festival called "Tiregan", has been offerd by Alpine Club of Iran and approved by Iranian authorities  as "national Day of Mt. Damavand" since 2004. In order to mark this event, Iran’s Alpine Club will hold a one-day congress in city of "Rineh" at the southern foot of Damavand on July 2, 2009. The meeting includes miscellaneous items such as a speech on Damavand’s environment, a full report of cycling around the world which was done by Iranian Somaye Yousefi and Jafar Edrisi during the past 2 year and live Iranian classical music. "Tiregan" Festival refers to the archangel Tir (arrow) or Tishtar (lightning bolt) who appeared in the sky to generate thunder and lightning for huge need of rain. Legend says that Arash-e Kamangir was a man chosen to settle a land dispute between two leaders, Iran and Turan. Arash was to shoot his arrow on the 13th day of Tir and where the arrow landed, there would lay the border between the two kingdoms. Also, according to the famous Iranian scientist, Abu reyhan Birooni, "Tiregan" is a day to respect Iranian authors’ status.