Azerbaijan–Russia border

Azerbaijan–Russia border (Azerbaijani: Azərbaycan–Rusiya sərhədi, Russian: Граница Азербайджана и России, romanized: Granitsa Azerbaydzhana i Rossii) is the state border between Russia and Azerbaijan. It is 338 km (210 mi) in length and runs from the tripoint with Georgia in the west to the Caspian Sea the east. Prior to 1991 it formed the border between the Russian Soviet Federative Socialist Republic (including Dagestan ASSR) and the Azerbaijan SSR within the Soviet Union. The southernmost point of the Russian Federation is located on the border.