《徐霞客游记·游颜洞记》
一个石洞朝东，有四丈高，水从洞中涌出，两边的石崖像两只角一样耸立，在洞前对峙为峡谷，水一出洞就破峡而去，气势极其雄壮，原来是水洞的后门。
一洞东向，高四丈，水从中涌出，两崖角起，前对为峡，水出洞破峡，势极雄壮，盖水洞后门也。
A stone cave faces east, is four yards high, and water gushes out of the cave. The stone cliffs on both sides stand tall like two horns, facing each other in front of the cave to form a canyon. The water rushes out of the cave and breaks through the canyon, the momentum is extremely majestic, and it turns out to be the back door of the water cave.