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The Backbone Range is a significant landform within the Chūgoku Range in western Honshu, Japan. This mountain range acts as a crucial divide, separating the Sea of Japan from the Inland Sea. While most peaks in the Chūgoku Range do not exceed 3,300 feet (1,000 meters), the Backbone Range descends sharply to the Kibi Plateau to the south. The Backbone Range is one of three distinct landforms that constitute the Chūgoku Range, alongside the Kibi Plateau and the Iwami Plateau.1

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2 Britannica Sources
  1. Japanese Alps
  2. Chūgoku Range

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