[3] The Maidan River, a tributary of the Kabul/Sarchashma rises at the pass at an altitude of about 3,300 metres (10,800 ft).
In 1929, Muhammad Mir Fath (1901-1964) was one of three Hazara commanders who defeated the forces of Habibullah Kalakani at the pass between March and September of that year.
[3] In 1983, the Hazara Al-Nasr group attacked the Harakat Islami in Siasang and the area near the pass.
[6] In 2008, the Ministry of Public Works began the rehabilitation of 136 kilometres of the Kabul highway,[7] with a 36 million euros funding from the Italian government.
The first phase of the project, Lot No 1, began in 2008 with the rehabilitation of a 54-kilometre stretch of earth road starting in Maidan Shar and working towards the Unai Pass.