《徐霞客游记·滇游日记二十四》
往西南走八里，一条小溪从东向西流。越过小溪又往南走，向东眺望三营，居家很兴盛，傍靠在东山麓，那里山峰更高大；向西眺望溪流，紧逼西山麓，那里土地更肥沃；越过这条横穿山坞的小溪，已经完全属于浪弯县境了。又往南走十里，大溪从西向东弯曲。
土人呼营为 阴 ，遂不免与会稽之邻县同一称谓莫辨矣。又南十里，则大溪自西而东向曲。
(7)Walking southwest for eight li, a small stream flowed from east to west. Crossing the stream and walking south again, looking east, I saw Sanying, which was very prosperous, leaning against the eastern foot of the mountain, where the peaks were higher; looking west, I saw the stream, which was close to the western foot of the mountain, where the land was more fertile; crossing the small stream that ran through the mountain ravine, I was already completely within the territory of Langwan County. Walking south for another ten li, the large stream curved from west to east.