渓谷

1. Origins, structure, and basic meaning

• Structure: 渓谷 (けいこく) combines mountain stream 渓 and valley 谷 to denote a valley or gorge.
• Basic usage: It contains narrow paths and can be viewed from above when covered in autumn leaves.

2. Common pitfalls and similar expressions

• A mountain-cut valley
  • 渓谷 often suggests steep terrain shaped around a watercourse, not a broad flat lowland.