What is another word for timberlines?
Pronunciation: [tˈɪmbəlˌa͡ɪnz] (IPA) 
There are several synonyms for the word "timberlines" that can be used to describe the elevation point where trees can no longer grow due to extreme weather conditions. One such word is "treeline," which describes the same elevation point above which trees do not grow. Another synonym is "montane zone," which refers to the region of a mountain range above the timberline. "Alpine zone" is another synonym that describes an area of high altitude where trees do not grow. Lastly, "tree limit" is a term that is commonly used to describe the point on a mountain where the tree line ends. All these synonyms can be used interchangeably to describe the same phenomenon.
