This is the 2954th most frequent Russian word.
горах
"Горах" translates to "mountains" (prepositional case) in English.
In this sentence, "горах" is the prepositional case of "горы" (mountains), used with the preposition "в" (in) to indicate location.
Я люблю отдыхать в горах.
I love relaxing in the mountains.
Here, "горах" again is in the prepositional case following "в", emphasizing the place where the skiing activity occurs.
Катание на лыжах в горах приносит мне огромное удовольствие.
Skiing in the mountains gives me immense pleasure.
In this instance, "горах" is in the prepositional case, used with the preposition "о" (about) to discuss the topic.