Definition
Tien Shan, also spelled Tyan Shan, is a major mountain range in Central Asia. It stretches for about 1,500 miles, making it one of the longest in the region. These mountains are known for their rugged terrain, glaciers, and high peaks. Think of them as the Asian version of the Rocky Mountains, but even older and more mysterious. They form a natural border between several countries. Imagine a huge, rocky wall separating different cultures.