Eastern, mountainous part of Imereti – Zemo (Upper) Imereti, or Argveti - is historical area of Western Georgia and includes municipalities of Zestafoni, Kharagauli, Sachkhere and Chiatura. Argveti is situated in the limestone zone thanks to which there are many karst caves, springs and underground waters in the area. Thermal water springs are also known. Water is used for running water supplies to Chiatura and surrounding villages, and in caves (caves in Ortvala mountain, Katskhi, Rgani, Gvarjila rock caves, ‘Wolf Rock’, Dzudzuani cave, TSU95) many stations of humans from upper and lower paleolith age were uncovered. Among them it is worth pointing out Dzudzuani cave where in 2009 archeologists found thread fibers of wild curved flax (34 000 y. BC) belonging to the earlier upper paleolith age. Scholar community acknowledge that this flax thread is the oldest in the world. There are several resort sites in Upper Imereti. Among them Kvereti, 7 km from the center of Sachkhere municipality, situated in the gorge of river Chikhura and noted for its medicinal waters of low mineralization. However, the biggest wealth of Argveti is manganese mines. Remnants of iron smelting oven and iron and clinker have been found here in the stations of ancient humans proving that historically metallurgy in the region was quite advanced. Since 80-ies of the XIX century the town of Chiatura was built for mining purposes. Fossil minerals extracted here make up 10% of Georgia’s commodity exports.