As we watched, the deer slowly walked out from the treeline.
12,000 ft is the treeline in Colorado.
Small branch plants grow above the treeline.
Downhill from the treeline, it is warm enough for trees to grow. Uphill from the line, it is too cold.
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Timer line
9,000-12000 feet. California is a big state, obviously. Treeline drops by 1000 feet for every 600 miles north you travel, on average. Additionally, treeline is about 1500 feet lower on the west side of the Sierras than on the east side, due to the cooler summers caused by the nearby ocean.
Western alps, central alps, and eastern alps
The treeline is the point above which trees do not grow on a particular mountain or group of mountains. Many mountains have bare summits, but many have large regions above the treeline where there is only rock, snow, and some plants such as lichens.
The Alps The Alps
what type of mountain is the alps in The alps are a range of mountains in Europe.
The Alps are the mountains that would have to be crossed.