《徐霞客游记·粤西游日记三十九》
又向西一里，登上一处土堡，向导想换马，那里的人不听从，只换了夫上路。
又西一里，登一堡，导者欲易骑，其人不从，只易夫而行。
They went another one li to the west and climbed up to an earthen fort. The guide wanted to change horses, but the people there did not listen. They only changed bearers and continued on their way.