A detachment of the Ural Pedagogical Institute excavated a burial mound on Belaya Gora, located on the right bank of the Ural River, 1 km south of the village of Belogorka, Zelenov District. The group consisted of six mounds stretched from north to south. Three mounds were investigated, in which five burials were found.

In the mounds of all mounds, accumulations of limestone stones were found. In kurgan 1, they formed a ring at the edge of the embankment, in the other two they were located haphazardly, creating blockages. The upper layers of the mounds of grave pits are also lined with stone. Traces of small ash pans were found in the embankments, and pieces of burnt wood and small coals were found in the filling of the pits. The burials were made in shallow oval pits, and two burials were made in mounds. The skeletons are slightly twisted, lying on the back or slightly turned to the right side. The bones of the arms are extended along the body, the bones of the legs are slightly bent and rolled to the side. The buried are oriented to the west, and in one case - to the east. In burial 1 of kurgan 1, a bronze knife with a humpbacked back and a blade beveled to the edge was found with a rectangular handle. In the mounds of mounds, a ring made of a tubular bone of an animal, a fragment of light brown ceramics with an admixture of grog and chalk in the dough were found. The investigated burial mounds belong to the transitional period from the Bronze Age to the Early Iron Age and date back to the 10th-8th centuries BC.