《汉书·志·地理志上》
潭水从玉山流出，向东到阿林县流入郁水，经过两个郡，行程百二十里。
玉山，潭水所出，东至阿林入郁，过郡二，行七百二十里。
Tan water flows out from Yushan Mountain, and flows into Yu water after reaching Alin County to the east. It passes two counties and a distance of one hundred and twenty li.