The southwestern part was watered by the Aras River with the lowest altitude of 2,667 ft (813 m) on the border with Sharur-Daralayaz uezd.
[2] The territory of the uezd had been a part of Persia's Erivan Khanate until 1828, when according to the Treaty of Turkmenchay, it was annexed to the Russian Empire.
[4] In 1918, the uezd became a part of the First Republic of Armenia, partially being occupied by the Ottoman army through much of 1918 as a result of the Treaty of Batum until its reincorporation into Armenian administration in the December of 1918.
After the establishment of Soviet power on 3 December 1920, most of the uezd formed part of the Armenian SSR, the center Erivan (Yerevan) serving as the new government's capital.
[6] The southernmost parts of the uezd corresponding to the locality of Sadarak became the northernmost section of the new Nakhichevan ASSR of the Azerbaijan SSR and the outer southwestern strip of the uezd, corresponding to the Aras corridor on the west bank of the Aras river, was ceded to Turkey in accordance with the treaties of Moscow and Kars.