Saylyugemsky National Park () sits at the mountainous X where the borders of Russia, Kazakhstan, Mongolia and China meet in the Altai Mountains of central Asia. Because of its remoteness and position at the meeting points of mountains, steppes, desert and forest, it is a globally important natural reserve for biodiversity. The park was formally established in 2010-2012, with a particular purpose of protecting the vulnerable Altai argali mountain sheep and the endangered Snow leopard. The component Saylyugem Mountains are a ridge of the Altai, and stretch to the northeast to the Sayan Mountains. The climate is cold and semi-arid. Administratively, the park is located in the Kosh-Agachsky District of the Altai Republic. While ecotourism has a stated role, visits to the territory currently require special passes from park administration, and activities are limited to roads and trails.