《徐霞客游记·滇游日记四》
于是顺着山峰往西北行，逐渐往下走一里，然后从亦佐县东门进城。
乃循峰西北行，稍下一里，而入亦佐县东门。
So he walked northwest along the mountain peaks, gradually walked down a li, and then entered the city from the east gate of Yizuo County.