Some features of the fortification of the Peter’s time in the middle course of the Irtysh

Purpose. In the history of the development of Russian fortification architecture in Siberia in the era of Peter I, the most unique situation and bright page should be considered the construction in a short time of a line of 930 miles fortresses along the right bank of the Middle and Upper Irtysh from the Omsk fortress to the Ust-Kamennaya. For Siberia, this was a unique situation, since previously fortified lines had not been created here. Therefore, it is important to study and characterize the natural and geographical conditions of the Russian development of the region.Results. This study is devoted to resolving a complex of problems related to the history and archaeology of the fortification of the Petrine time along the Middle Irtysh (within the modern Cherlak district of the Omsk region). Here we have passed the water and foot routes. In the course of the work, natural conditions for the placement of defensive objects and their search at the present time, the state and types of communication routs, the presence of scaffolding in the immediate vicinity, stone and ore resources, etc. were consideredConclusion. In general, the passed route provided significant scientific results, which made it possible to objectively characterize the conditions of the territory development in the Middle Irtysh by Russians in the time of Peter the Great. As a result of the study, we were able to significantly clarify the history of the emergence and reconstruction of the fortification objects: the Solianoi Povorot and Krutoyarka villages. Prospects for further study of these sites are associated with archaeological excavations.