In the natural – physical history of the Ulyanovsk region has a rather strange page. Recall the formation of river valleys, which under the laws of geology must form a chain of terraces, resembling staircases where each levels corresponds to a certain geological period, and the process of formation is associated with fluctuations in the ancient sea, the remnants of which form on the right bank of the clearly distinguishable on the historical layers of accretions. Despite this, even in low-lying old left bank, we do not see the valleys formed. Thus we are forced (by logic) must come to the idea of forming a one-time channel of the Middle Volga. Many writers such as Petra Diamonds offer more in-depth analysis. This is confirmed by geological structure of the right bank, are deposits of certain gifts to an ancient sea. But in this case there is another problem – the dating of monuments and sites of prehistoric cultures, tombs and burial mounds that much as on the right and the left bank. You ask what is the problem – a problem that they are on the same level of depth of burial with the geological formations which are referred to as pre-and post paleoistorii glacial period, while there are people from parking and standing culture, which is expressed in the rituals of the burial of dead in the high technology such as processing of iron, copper and bronze. This is in principle does not fit the dominant paradigm of forming the channel, which can be read in any textbook for the seventh grade.