《水经注·卷三十七》
壶头道路曲折崎岖，险阻很多，其间溪流萦纤，有成千的险滩。马援去壶头，希望早日功成，不幸路上遭到瘴气之毒，终于死在这里。
山下水际，有新息侯马援征武溪蛮停军处，壶头径曲多险，其中纡折千滩。援就壶头，希效早成，道遇瘴毒，终没于此。
The road to Potou is tortuous and rugged, with many obstacles. There are thousands of dangerous beaches among the streams. Ma Yuan went to Potou, hoping to achieve success soon. Unfortunately, he was poisoned by miasma on the way and finally died here.