What sea is located at the mouth of the Dnieper River in Russia?
The sea that is located at the mouth of the Dneiper River is the Black Sea, which can be accessed via the Straits of the Dardanelles from the Aegean Sea. The Black Sea is bordered by the landforms of Europe, Caucasus and Anatolia.The Black Sea is at the mouth of the Dnieper (Dnipro) River. This is in Ukraine, however, NOT in Russia.