[citation needed] After passing from the vicinity of the cities of Radkan and Chenaran in Razavi Khorasan Province and then passing north and east of the city of Mashhad, the Kashfrud joins the Harirud River at the frontier of Iran and Turkmenistan.
[1][2][3] The Kashafrud is 240 kilometres or 150 miles long and originates from the mountain ranges of Hezar Masjed and Binalood.
[6] Alexander the Great passed through the valley of the Kashaf River.
The army of Genghis Khan attacked the region of the Kashafrud in 1220AD.
A number of stone tools discovered by Kashafrud are displayed in the Paleolithic Hall of the National Museum of Iran.