The San'in Mountains are a mountain range located in the western part of Honshu, Japan. They stretch across the Tottori and Shimane prefectures, offering stunning landscapes and diverse ecosystems. The mountains are known for their rugged terrain, lush forests, and unique geological features. This range is part of the larger Chūgoku Mountains and is characterized by its steep slopes and deep valleys. The San'in Mountains are also home to various wildlife and plant species, making them an important area for biodiversity. Hiking and outdoor activities are popular in this region, attracting nature enthusiasts year-round.