《徐霞客游记·游雁宕山日记后》
我二十年前探寻雁湖，往东寻找高峰，被断绝的崖壁阻止，于是坠着绳索而下，坠下来的地方就是这里。
余二十年前探雁湖，东觅高峰，为断崖所阻，悬绠绳索而下，即此处也。
I explored Yanhu Lake 20 years ago and searched for the peak to the east. I was blocked by the broken cliff, so I hung down a rope and dropped down. That was where I dropped down.