高山峻岭

Explanation: Jun: high mountains and steep. High and dangerous mountains. 　　Source: Ming Shinai "Water Margin" eighty-sixth back: "When people play a look on all sides is full of mountains, around cliffs, we saw high ranges, there was no way board." 　　Examples: Among the Three Gorges, only the Wu Gorge is the longest. Both sides are ~, ancient dark, cover the river map, only the middle line of the sky was exposed. ★ Ming Feng Meng, "Awaken the common saying" twenty-five volumes