Nature monument "Geological exposure of Devona on the Oredezh River near the village of Yam-Szovo."(Leningrad region).[4]

Description	Nature monument "Geological exposure of Devona on the Oredezh River near the village of Yam-Szovo."(Leningrad region).[4] / Lashkov, F. - 2016. -605: Territory..Source of an electronic copy: Committee on Natural Resources of the Leningrad Region

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