
1) Arboreal border 2) Edge along some mountaintops 3) Edge of the tundra 4) Forestal crown 5) Fringe of the green 6) Limit of timber growth 7) Mountain demarcation 8) Mountain dividing point 9) Rockies demarcation 10) The edge of the green 11) Timberland limit 12) Tundra borderer 13) Upper limit of a forest
Found on
https://www.crosswordclues.com/clue/treeline
[outliner] TreeLine is a free and simple outliner with advanced data element definition and export abilities. It uses a basic tree structure to organize information, and allows the user to define different types of nodes and leaves. ==File formats== === Export === TreeLine outlines can be exported as HTML, per-data type user defined formatt...
Found on
http://en.wikipedia.org/wiki/TreeLine_(outliner)

Elevation or latitude above which trees do not grow.
Found on
http://www.sialis.org/glossary.htm

Area on a mountain where trees stop growing due to harsher environmental conditions. Also spelled tree line.
Found on
https://snowslang.com/glossary/

point at which the trees stop
Found on
https://www.encyclo.co.uk/local/21304
No exact match found.