山さん谷こく

noun

mountains and valleys

Refers to the general landscape of mountains and valleys, often used in poetic or descriptive contexts.

• この地ち方ほうは山さん谷こくが多おおく、景色けしきが美うつくしい。

  This region has many mountains and valleys, and the scenery is beautiful.

noun

mountainous valley

Specifically a valley surrounded by mountains; a more concrete geographical feature than the general 'mountains and valleys' sense.