Data on the dynamics of the fortification construction of the Baitovo culture in the context of the traditions of defensive architecture among the population of the early iron age of the forest-steppe Trans-Ural

The article analyses remains of the Baitovo Culture fortifications in the focus of archaeological research. These remains are dated back to the early Iron Agee and situated in the Transural forest-steppes. Previously determined stages of the culture development (early to late 7th – 6th century BC and late 5th – 3rd century BC) are relied on to analyse and restore the walls that used to fringe the settlements. The study reviews the shapes, depth and water levels in the moats at Maray5, Likhachevskoe and Borovushka2 hillforts. The research suggests that the settlements used to be fortified with a stakewall at the bottom of the moat. Likhachevskoe hillfort had its gate towers restored. The researched Baitovskoe, Staro-LybaevoII and Bochanetskoe hillforts allow to conclude that even later on the early Iron Age settlements preserved the tradition of erecting compact stakewalls or wattles at the bottom of moats. However, this as when the Baitovo culture people started to erect fortifications with deeper moats and higher walls (Bolshoy Imbiryay3, Maray1 hillforts). This is evident of increasingly more substantial defence of the settlements. The studied Sargat and Gorokhovo culture fortifications peaked in 3rd – 2nd century BC. The comparison reveals that on one hand people kept opting for simple stakewall structures or wattlers to fortify their settlements, but they tended to change the properties and made their moats and walls more substantial. On the other, they reinforced fortifications through gate towers, wooden supports for moat walls, log frameworks and cages on the walls. Such structures are typical for fortresses that bore the function of social and economic centers. It is concluded that the defense works the Baitovo people erected illustrate the early defensive architecture of the early Iron Age Transurals.