Guruboghaz is a village in the Echmiadzin uezd of the former Iravan governorate, later in the former Abaran district, and currently in the Aragatsotn province. The village was integrated into the former Alagoz (Aragats) district in 1972. It lies at a distance of 15 km from the Alagoz (Aragats) settlement, at a height of 2100 m above sea level.

After the Russo-Turkish war of 1877–1878, the Yazidi Kurds removed from Türkiye were settled in the village. Afterwards, the Azerbaijanis gradually left the village.

The toponym was coined by combining the Turkic word “guru” used to mean “dry, bare, without greenery”, “a dry, rocky plain” and the Azerbaijani word “boghaz” used to mean “a head of valleys, rivers, river source”, “a narrow passage between two mountains”.

By the decree of the Presidium of the Supreme Soviet of the Armenian SSR dated 25 January 1978, the village was renamed “Ortachya”, and by decision of the Armenian parliament dated 4 July 2006, The village was renamed “Mijnatun”. According to the law “On the administrative-territorial division of the Republic of Armenia” dated 7 November 1995, it was integrated into the administrative territory of Aragatsotn province.

Geographical coordinates: latitude: 40°41’ N., longitude: 44°21’ E.