горной

In a sentence

• Я люблю гулять на горной тропе.

  I enjoy walking on the mountain trail.

  Here, the word "горной" describes the adjective "mountain" in the instrumental case, modifying "тропе" (trail)

• В горах я почувствовал свежесть горной реки.

  In the mountains, I felt the freshness of the mountain river.

  In this case, "горной" is the adjective "mountain" in the genitive case, modifying "реки" (river)

• Горной Лукой всей душой поселился в его сердце.

  Mountain Luka settled deep in his heart.

  Here, "горной" is modifying the name "Лукой" and indicates a thematic or locational characteristic linked to "mountain".