Alaborg

In 1989, Tatiana Jackson demonstrated that the only location conforming to this description is the so-called "Gorodishche" (literally, "abandoned fortress") on the Syas River.

During the years of Stalinism, the finds brought to light by Ravdonikas were lost, while the archaeological site was turned into a quarry for construction of a highway.

They defined the following areas of archaeological interest: Compared with the Volkhov, the Syas River provided an alternative (and more rapid) route from the Baltic to the Volga.

To protect these key points, the Varangians established the fortified settlements of Duboviki and Gorodische at the head of the lower and upper Volkhov rapids, accordingly.

At that period all the other centres of the Rus' Khaganate faced with destruction, which Constantine Zuckerman associates with Vadim's uprising, as recorded in the East Slavic chronicles.