 Early Bronze Age monuments were studied more thoroughly around the Arpa River in Nakhchivan in 2006-2013 by V. Bakhshaliyev,V.Aliyev,R.Goyushov, K.Morro, S.Ashurov.Polished dishes, ceramic patterns, bronze and bone objects belonging to the Kur-Araxes culture were revealed in the territory of the Ovchulartepesi in Arpachay valley.Kilns, clay pots and tools dating to the Kura-Araxes culture were revealed in the first layer of Shortepe in 1936 by A. Alakbarov.