east. In western Ciscaucasia, where the Scythians were not large in number enough to spread throughout the region, they instead took over the steppe to the south of the Kuban river's middle course, where they reared large herds of horses. During this period, the tribe of the Royal Scythians would primarily bury their dead at the edges of the territories they occupied, especially in the western Cisaucasian region, instead of within the steppe region that was the centre of their kingdom; due to this, several Scythian kurgan were located in Ciscaucasia, with some of them being significantly wealthy and belonging to aristocrats or royalty, and the Royal Scythians' burials in the Kuban Steppe were the most lavish of all Scythian funerary monuments during the Early Scythian period. During the early 6th century BC, the some groups of Transcaucasian Scythians migrating northwards would arrive into the Pontic Steppe to reinforce the Royal Scythians who had already arrived there. Between 650 and 625 BC, the Pontic Scythians came into contact with the Greeks, who were starting to create colonies in the areas under Scythian rule, including on the island of Borysthenes, near Taganrog on Lake Maeotis, as well as more places, including Panticapaeum, Pontic Olbia, and Phanagoria and Hermonassa on the Taman peninsula; the Greeks carried out thriving commercial ties with the sedentary peoples of the forest steppe who lived to the north of the Scythians, with the large rivers of eastern Europe which flowed into the Black Sea forming the main access routes to these northern markets. This process put the Scythians into permanent contact with the Greeks, and the relations between the latter and the Greek colonies remained peaceful, although the Scythians might have destroyed Panticapaeum at some point in the middle of the 6th century BC. The territory around Pontic Olbia was under the direct rule of that city and was inhabited only by Greeks. Soon after, during the Early Scythian period itself, the centre of power of the Royal Scythians shifted from the eastern Pontic steppe to the north-west, in the country of the Aroteres tribe, where was located the main industrial centre of Scythia; during this period, the Royal Scythians buried their dead in the country of , which was located on the boundary of the steppe and the forest-steppe, and corresponded to the eastern part of the country of the Aroteres. During this period, the Scythians