Chubukhchu is a village in the Echmiadzin uezd of the former Iravan governorate, later in the former Gurdugulu (Hoktemberyan) district, and currently in the Armavir province. The provincial centre lies 18 km to the southeast of the town of Serdarabad (Hoktemberyan, Armavir), in the vicinity of the Araz River, by the Boyuk Garasu River, and at a height of 840 m above sea level. It was marked on the five-verst map of the Caucasus.

The village was initially inhabited by Azerbaijanis who gradually left it after Armenians had been settled in the region. The Armenians were removed to the village from the villages of the Turkish province Surmali.

The toponym was coined on the basis of the tribal name “Chubukhchu” which is a phonetic form of the Turkic ethnonym “Chubukhlu”. The suffixes “-lı” and “-çı” are synonymous.

The village was renamed “Vardanashen” by the decree of the Presidium of the Supreme Soviet of the Armenian SSR dated 4 April 1946. According to the law “On the administrative-territorial division of the Republic of Armenia” dated 7 November 1995, it was integrated into the administrative area of the Armavir province.

Geographic coordinates: latitude: 40°03′ N., longitude: 44°11′ E.