《水经注·卷三十三》
焚道县有蜀王兵营的栅栏，山神大肆作祟，江中崖壁险阻，无法开凿。于是李冰堆柴去烧，所以那里的悬崖还留有斑斓的色彩，或红或白，映着江水；黄黑相间的鱼从焚道游来，到这里就停下了，据说是害怕崖壁和险礁，不敢再向上游了。
县有蜀王兵兰，其神作大难江中，崖峻阻险，不可芽凿，李冰乃积薪烧之，故其处悬岩，犹有五色焉。赤白照水玄黄，鱼从来，至此而止，言畏崖屿不更上也。
In Fengdao County, there was a fence for the barracks of King Shu. The mountain god was severely damaged. The cliffs on the bank of the river were dangerous and could not be excavated. So Li Bing piled up firewood to burn it, so the cliffs still have colorful colors, red or white, reflecting the river water. The yellow and black fish swam from Fengdao to stop here. It is said that they were afraid of cliffs and dangerous reefs and did not dare to swim up the river.