The first Russian explorers started to develop the territory of the Lower (Northern) Angara region in the early XVII century. It were some features in the exploring of this region – geographical location, climate conditions, topography and landscape, and the socio-economic and demographic situation. All these factors influenced the formation and development of the Russian old resident population. Throughout every period of development of the region was formed a unique type of a residential complex, which is based on the construction practices that are inherent to the Russian North. In 2009–2012 the rescue operations were conducted in the flood zone of the Boguchanskaya HPP – at the objects of archaeological heritage Ust-Yodarma II and Yodarma Village containing the remains of the material culture of the period when the Russians started to explore the region. As a result of fieldwork it were discovered the remains of 37 wooden constructions for various household purposes of the XVIII–XX centuries as well as a large number of accompanying archaeological material of this period.