《水经注·卷三十四》
江水又往东流经西陵峡。《宜都记》说：从黄牛滩往东进入西陵境内，到峡口的百里左右航程中，山水萦纤曲折。两岸高山峻岭层层叠叠，不到正午或夜半，看不见太阳和月亮。
江水又东径西陵峡，《宜都记》曰：自黄牛滩东入西陵界，至峡口百许里，山水纡曲，而两岸高山重障，非日中夜半，不见日月。
The river flows further east through the Xiling Gorge. "Yidu Ji" states: From Huangniutan, going east into the Xiling territory, there is a distance of about 100 miles from the river to the mouth of the gorge, with winding and winding water and mountains. The mountains on both sides are rugged and alpine, and the sun and moon cannot be seen until noon or midnight.