■ Upper Volga ■ Middle Volga ■ Lower Volga The Volga region, known as the Povolzhye ( UK: /pəˈvɔːlʒeɪ/ pə-VAWL-zhay, US: /pəˈvoʊlʒeɪ/ pə-VOHL-zhay; Russian: Поволжье [pɐˈvoɫʐje] lit. 'Along the Volga'), is a historical region in Russia that encompasses the drainage basin of the Volga River, the longest river in Europe, in central and southern European Russia. The Volga region is culturally separated into three sections:
■ Upper Volga Region – from the Volga River's source in Tver Oblast to the mouth of the Oka River in Nizhny Novgorod;
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).