Abstract. In order to reconstruct the runoff system at the Kama and Pechora river watersheds in the northern Kama region, field studies were carried out - drilling of paleotroughs along the known geological profiles and study of sections in the Vishera river valley with sampling for analytical and geochronometric studies. As a result, preliminary conclusions about the reorganisation of the runoff systems of the Kama, Pechora, Kolva and Vishera rivers in the Middle Pleistocene were made. The history of the second half of the Late Pleistocene is recorded in the terraces of the Vishera river, which were formed in the late Middle-Late Weichselian. Subsequent results of uranium-thorium and OSL dating, micropalaeontological studies, petrographic and zircon analyses will allow to confirm the stated assumptions or to draw completely new conclusions.

Keywords: runoff systems, Middle Quaternary, Late Quaternary, Upper Kama, palaeotroughs, Pechora river, Kama river basin, terrace levels

Krasnov I.I. Quaternary sediments and geomorphology of the Kama-Pechora-Vychegda watershed and adjacent territories // Materials on geomorphology of the Urals. 1948. Vol. 1. P. 47-88.

Panin A.V., Zaretskaya N.E., Utkina A.O., Lapteva E.G., Kurbanov R.N. Reorganisation of the valley network on the Kama-Vychegda watershed: first geochronological data // Abstracts of the Interregional Conference ‘Peribaltik-2024’, Vologda: Vologda State University. 2024. P. 60-63.

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