The East Sayan is a mountain range located in southern Siberia, Russia. It is part of the larger Sayan Mountains and stretches across the Tuva Republic and Irkutsk Oblast. The range is characterized by rugged terrain, deep valleys, and diverse ecosystems, making it a significant area for biodiversity. The East Sayan is home to various wildlife species, including the Siberian ibex and snow leopard. The region also features numerous rivers and lakes, contributing to its natural beauty. The mountains are popular for outdoor activities such as hiking, skiing, and wildlife observation, attracting both locals and tourists.