thumb|left|Caucasus Mountains in northern Azerbaijan Three physical features dominate Azerbaijan: the Caspian Sea, whose shoreline forms a natural boundary to the east; the Greater Caucasus mountain range to the north; and the extensive flatlands at the country's center. There are three mountain ranges: the Greater and Lesser Caucasus, and the Talysh Mountains, together covering approximately 40% of the country. The highest peak is Mount Bazardüzü , while the lowest point lies in the Caspian Sea . Nearly half of all the mud volcanoes on Earth are concentrated in Azerbaijan, these volcanoes were among nominees for the New 7 Wonders of Nature.
thumb|left|Caucasus Mountains in northern Azerbaijan Three physical features dominate Azerbaijan: the Caspian Sea whose shoreline forms a natural boundary to the east; the Greater Caucasus mountain range to the north; and the extensive flatlands at the country's center. There are three mountain ranges the Greater and Lesser Caucasus, and the Talysh Mountains, together covering approximately 40% of the country The highest peak is Mount Bazardüzü , while the lowest point lies in the Caspian Sea . Nearly half of all the mud volcanoes on Earth are concentrated in Azerbaijan, these volcanoes were among nominees for the New 7 Wonders of Nature.