《徐霞客游记·滇游日记三十六》
一里稍下走，于是沿山坞往东行，这里山坞开始开阔起来向东伸展而去，水从它的西南方濒临笔架山的北冈，也随着北冈往东折。
一里稍下，遂沿坞东行，其坞始豁而东向去，水从其西南濒笔架山之北冈，亦随之东折。
After walking a little less than a li, we walked east along the hills' base. Here, the hills' base opened up and extended eastward, and the water flowing from the southwest side of its north ridge, facing Bijiashan, also turned eastward along the north ridge.