Azerbaijan is nearly surrounded by mountains. The Greater Caucasus range, with the country's highest elevations, lies in the north along the border with Russia and run southeast to the Abseron Peninsula on the Caspian Sea. The country's highest peak, Bazardyuze Dagi, rises to 4,485 m in this range near the Azerbaijan-Russia border. The Lesser Caucasus range, with elevations up to 3,500 m, lies to the west along the border with Armenia. The Talish Mountains form part of the border with Iran at the southeast tip of the country.