《水经注·卷四》
峰岭上青松罗列，岩壁上赤石高悬，其间参差错落地长着些苍翠的柏树，互相映衬，色彩鲜丽分明，望去就像图画一般。山涧宽约十来步，往南流经鼓钟川，分成两条。一条往西北流，一百六十里左右的流程间，高山深谷东回西转，山径崎岖，只能通过单人独马。
其水南流，历鼓钟上峡，悬洪五丈，飞流注壑，夹岸深高，壁立直上，轻崖秀举，百有余丈，峰次青松，岩悬赬石，于中历落，有翠柏生焉，丹青绮分，望若图绣矣。水广十许步，南流历鼓钟川，分为二涧：一涧西北出，百六十许里，山岫回岨，才通马步。
Verdant pines stand tall on the peaks and ridges, and red rocks hang high on the rock walls. In between, lush cypresses grow irregularly, complementing each other in a vibrant and distinct color scheme, like a painting. The mountain stream is about ten steps wide, flows southward through Gulongchuan, and divides into two. One flows northwest, and along its course of about 160 miles there are high mountains and valleys turning east and west, and the mountain path is rugged, allowing only a single person or horse to pass.