Bobyliok grotto is located in the south-west of Middle Urals, in the current contact zone of dark coniferous forest and forest-steppe. The materials of the Upper Paleolithic site are located in late Valdai deposits. The collection of bone artifacts is unique for the region and consists of 30 items. They can be divided in 3 groups: items with traces of treatment (7), tools (9) and non-utilitarian items (11). Group 1 consists of fragments of reindeer horns and remnats of tubular bones of mammals. Their surface has traces of sawing, cutting, wasting and abrasion. Group 2 includes two fragments of insert daggers (of reindeer horn and mammoth tusk). They were manufactured with cutting and planing tools and polished. The item made of tusk has double lines engraved on the sides, on both planes. The item made of horse bone, with overlying marks on the surface, was used for pommelling belts and as a strike tool. There is also one digging tool, two piercing and cutting tools, one side-scraper and one polisher. Group 3 includes details of necklaces from mammoth tusk. The technology of their manufacturing can be reconstructed. Four items (of bone, horn and tusk) were poliched, chipped and cut. One bone fragment has traces of engraving.