On the northern shore of the Penyagin Pond, near the modern boat station, remnants of a settlement of the Vyatichi, known as the 3rd Mitinskoye Settlement, dating back to the 12th-15th centuries, have been preserved. This settlement was discovered in 1991 by A.V. Trusov. Research showed that its area was just over one hectare. Here, remnants of ancient buildings were found, as well as numerous artifacts related to the economic activities of the inhabitants, including fragments of clay vessels, a piece of an iron knife, and a rare cylindrical lock. These findings suggest that at least one prosperous family may have lived here, and further excavations may reveal new buildings and unique artifacts.

The Vyatichi, one of the East Slavic tribes, maintained significant differences from their neighbors during the era of the Ancient Russian state. They formed a tribal union and inhabited the Upper Oka region in the 9th-11th centuries, controlling important trade routes between Europe and the East. The Vyatichi lived in a clan-based society, electing a leader known as a prince, who commanded the army. Gradually, the prince's power became hereditary. The Vyatichi built log houses with small windows, which were closed with bolts in winter.

The lands of the Vyatichi were rich in game, birds, and fish. They led a semi-hunting and semi-agricultural lifestyle, moving villages as the fields were depleted. In addition to agriculture and hunting, the Vyatichi engaged in beekeeping and fishing, as well as raising livestock. Trade was an important part of their life; they maintained connections with the Arab world, Western Europe, and Byzantium, exchanging furs, honey, and crafts for silk fabrics and jewelry.

Archaeological excavations revealed numerous craft workshops of the Vyatichi, where metallurgists, blacksmiths, jewelers, and potters worked. Metallurgy was based on local ores, and jewelry reached a high level. The Vyatichi produced bracelets, rings, and amulets.

Ancient Russian sources mention various terms for rural settlements, but the most common is "selo." These settlements were usually located near water bodies and consisted of several yards. The inhabitants of such settlements, living in small communities, provided for themselves, which is confirmed by the findings of economic and craft buildings.