Alaska Range(阿拉斯加山脉) is famous for its valleys and glaciers(冰川). It has many t forests and big glaciers which are over millions of years old. It a more than a million tourists from all over the world. It is also one of the most d places on the earth.

    Of all the p, Mount McKinley is the highest. It's one of the most popular places to go for mountain c. It's very difficult to climb Mount McKinley because the t of the mountain is covered by thick snow all year round, and there are many other difficulties like the f weather c, avalanches(雪崩), the heavy storms and so on.

    For these climbers it is an extremely dangerous climb—i, many people have l their lives on this mountain. However, the mountain climbers have never given up climbing it, and they enjoy the great challenges in the mountains.