Nakhchivan is an Autonomous Republic within the territory of Azerbaijan Republic. There are historical monuments, mausoleums, museums on the territory of Nakhchivan, many of which have become historical monuments.
I Kultapa, Ovchular Tepesi, Sadarak, Khalac, ÃÂrÃÂbyõngicàand other monuments have been found during this period. More than 20 Chalcolithic monuments have been discovered during an archaeological expedition in the Sirab village of Babak region.
The length of the Duzdagh () salt field is 3 km, width is 2 km, and the thickness is 150 m. According to short-term studies of the French-Azerbaijani expedition in 2007, the discovery of Eneolithic and Kur-Araz ceramics from the southern slopes of the deposit was supposed to start early in the operation of the mine. In order to obtain more comprehensive information, systematic investigations were launched in 2008.