Gholhak (also Qolhak) is a neighbourhood in Northern Tehran,a part of Shemiran, located between Zargandeh/Elahiyeh to the west and Ekhtiarieh/Dolat to the east and is served by Shariati St., which in the old times was known as "Shemiran Road" and later with the construction of highways, "Old Shemiran Road".Previously during the Qajar era,it had a rural structure and was considered as a suburb of Tehran.