According to Shahnameh Ferdowsi (around 1000 AD), it was the place of a famous war called Davazdah Rokh(12 hero) between Iran and Turan.

The water clocks used in Iran were one of the most practical ancient tools for timing the yearly calendar.

The highest point in the vicinity is 2,775 meters (9,104 ft) above sea level, 17.7 km (11.0 mi) southeast of Qole-e Tir Mahi.

One suggests that after his defeat, he sought refuge at a mill near Marv, the latter who killed Yazdegerd in order to obtain his jewelry.

According to the excavations of Zibad-Gonabad Fortress and according to oral narrations and the report of Blazeri and Habib Abdolhai, Dr Ajam and Abas Zmani (historical study magazine 1974), it seems that the narration related to the murder of Yazdgerd in Merw Mill is more mythical than fact.

[9] During the Islamic invasion of Iran, Yazdegerd III went to refuge in Marv; on his way to Merv he stayed in Gonabad Mahoe.

[9] Regardless, the death of Yazdegerd marked the end of the Sasanian Empire, and made it less difficult for the Arabs to conquer the rest of Iran.

An empire–which had a generation earlier briefly conquered Egypt and Asia Minor, even reaching as a far as Constantinople, fell to a force of lightly equipped Arabs that were used to skirmishes and desert warfare.

The heavy Sasanian cavalry was too sluggish and systematized to contain them; employed light-armed Arab or East Iranian mercenaries from Khorasan and Transoxiana would have been much more successful.

Sufeh Pir is another famous place in Zibad, a holy cave believed to be the tomb of Piran Viseh in the Kūh-Zibad mountain.

According to the book of Dr. Abas Zamani Piran Viseh was buried in the cave of Sofe Zibad now called DarSufa Pir.

[13] Sarv-e Zibad is protected by the Cultural Heritage Organization of Iran as a national natural monument and is a major tourist attraction with a height of 20 metres and with a perimeter of 6.5 meters (21 ft) at its trunk and 16 meters (52 ft) higher up around its branches.

Despite the desert and dry place with little rain natural conditions of its location have been credited as the main reason for the tree's longevity.[5].