is a mountain range in the Chà «goku region of western Japan. It runs in an eastâÂÂwest direction and stretches approximately from Hyà Âgo Prefecture in the east to the coast of Yamaguchi Prefecture. The range also reaches under the Pacific Ocean.
The two tallest mountains in the group are Daisen and Mount Hyà Âno, which are and , respectively. Many other mountains in the range are also over , while some of the smaller mountains are less than . Granite is the most common stone found among the mountains, much of which has been exposed through erosion.
Other than Daisen, most of the mountains run along the border of Tottori and Okayama prefectures and the border of Shimane and Hiroshima prefectures. The mountains form a drainage divide and natural barrier in western Japan between the San'in Region to the north and the San'yà  Region to the south.
The Chà «goku Mountains are the source of several rivers in western Japan. All flow either north to the Japan Sea or south to the Inland Sea with the exception of the Gà Ânokawa River (), which runs along the mountain range in Hiroshima and Shimane prefectures.
The Sendai River (), the Tenjin River (), the Hino River (), and the Kando River () all run steeply from the Chà «goku Mountains to the Japan Sea. The Yoshii River (), the Asahi River (), and the à Âta River () form a broader alluvial plain to the south of the mountain range and empty in to the Inland Sea.
The Chà «goku Mountains are a source of iron sand, and the region was home to some of the earliest production of ironware in Japan. The broad tablelands of the mountain region support cattle ranches, notably for the production of wagyu beef. The numerous rivers of the Chà «goku Mountains support an extensive network of rice production in western Japan.