公路穿过世界最高的山脉，海拔2至3公里。
It passes through some of the worlds highest mountain passes in the world, with a mean altitude in between 2 to 3 miles above sea level.
在某些地方，比如新西兰以及喜马拉雅山脉的部分地区，山峰长高的速度最快，大约是每年10毫米。但是一般来说，山峰长高的速度大约在每年2 - 3毫米。
The fastest mountain growth is around 10mm a year in places such as New Zealand and parts of the Himalayas, but more commonly peaks grow at around 2-3mm per year.
在俄勒冈州的喀斯喀特山脉，山脊的温度要比2600英尺以下的山谷高27华氏度。
In the Oregon Cascades, ridgeline temperatures have clocked in at 27 degrees Fahrenheit warmer than those in a valley 2, 600 feet below.
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