The Altai mountain range is a mountain range located in Russia, spanning from the Republic of Altai in the west to the Altai Krai in the east. It is one of the longest mountain ranges in Russia, stretching for over 1, 500 kilometers. The highest peak in the range is Mount Belukha, which stands at 4, 506 meters above sea level. The Altai mountain range is home to a variety of flora and fauna, including endangered species such as the snow leopard and the Siberian ibex. It is also a popular destination for hikers and climbers due to its stunning scenery and challenging terrain.