Korcheva (Russian: Корчева́) was a town in central Russia, on the territory of the modern Konakovsky District, Tver Oblast, on the Volga River, with a...

(«В лето 6576 индикта 6 Глеб князь мерил море по леду от Тмутороканя до Корчева 14000 сажен»). A sazhen, an old Rus unit of length, was equal to seven...