The paper is devoted to the publication of archaeological research of the burial mound Mandesarka-6, located at the top of the watershed of the rivers Mandesarka and Kayrahta in the southern Urals. The burial mound includes 11 groundwater mounds: 9 round, 1 oval and 1 dumbell-shaped. In 2015–2016, barrows 1–4 and 6 were investigated. The paper contains description of burial structures and grave goods unearthed from these mounds. The burial chambers are represented as the burial pits with undercuts and narrow rectangular pits with rounded corners. This type of burial chambers is typical of most of the Late Sarmatian time in the Volga-Ural region. The filling of graves contains the remains of wooden structures and organic decay. The grave goods include weapons, belt elements, household components and decorations. Of interest are an iron sword, an iron dagger and a bronze two-piece finial from knife. We compare these items with similar things from the burial mounds of the Volga-Ural region, Caucasus, Bosporus, Central Asia. We pay special attention to the ceramic complex, which is represented by a two-handed moldings jug, pot “pearls”, asymmetrical small pot and fragments of vessels that are traditional for burials of the Late Sarmatian time in the South Ural region. A sustainable composition of analogical pots with fibulae with triangular, geniculate-curved back from the burial of the Urals let attribute the ceramic complex of the barrows of the Mandesarka-6 burial mound to the mid - second half of the 3rd century BC. In general, we suggest dating the published complexes of the burial mound Mandesarka-6 by the second half of the 2nd – 3rd cc. AD. We provide anthropological characteristics of the buried in the burial mounds, their age. Special attention is also paid to the woman’s burial from barrow 6 with a strong artificial skull deformation.