Mountains, overlapping with the area of the earlier Afanasevo culture. Additional sites are scattered as far south as the Koppet Dag (Turkmenistan), the Pamir (Tajikistan) and the Tian Shan (Kyrgyzstan). The northern boundary vaguely corresponds to the beginning of the Taiga. More recently, evidence for the presence of the culture in Xinjiang in far-western China has also been found, mainly concentrated in the area comprising Tashkurgan, Ili, Bortala, and Tacheng area. In the Volga basin, interaction with the Srubna culture was the most intense and prolonged, and Federovo style pottery is found as far west as Volgograd. Mallory notes that the Tazabagyab culture south of Andronovo could be an offshoot of the former (or Srubna), alternatively the result of an amalgamation of steppe cultures and the Central Asian oasis cultures (Bishkent culture and Vakhsh culture). In the initial Sintashta-Petrovka phase, the Andronovo culture is limited to the northern and western steppes in the southern Urals-Kazakhstan. Since then, at the 2nd millennium, in the Alakul Phase (2000–1700 BC), the Fedorovo Phase (1850–1450 BC) and the final Alekseyevka Phase (1400–1000 BC), the Andronovo cultures move intensively eastwards, expanding as far east as the Upper Yenisei River, succeeding the non-Indo-European Okunev culture. In southern Siberia and Kazakhstan, the Andronovo culture was succeeded by the Karasuk culture (1500–800 BC). On its western border, it is roughly contemporaneous with the Srubna culture, which partly derives from the Abashevo culture. The earliest historical peoples associated with the area are the Cimmerians and Saka/Scythians, appearing in Assyrian records after the decline of the Alekseyevka culture, migrating into Ukraine from ca. the 9th century BC (see also Ukrainian stone stela), and across the Caucasus into Anatolia and Assyria in the late 8th century BC, and possibly also west into Europe as the Thracians (see Thraco-Cimmerian), and the Sigynnae, located by Herodotus beyond the Danube, north of the Thracians, and by Strabo near the Caspian Sea. Both Herodotus and Strabo identify them as Iranian. Characteristics The Andronovo culture consisted of both communities that were largely mobile as well as those settled in small villages. Settlements are especially pronounced in its Central Asian parts. Fortifications include ditches, earthen banks as well as timber palisades, of which an estimated twenty have been discovered. Andronovo villages typically contain around two to twenty houses, but settlements containing as much as a hundred houses have been discovered. Andronovo houses were generally constructed from pine,