《徐霞客游记·游恒山日记》
又走数里，到土岭，土岭距离州城还有六十里，西南距离沙河，一共有五十里了。于是在土岭一户和我同姓的居民家住下。
又数里，为土岭，去州尚六十里，西南去沙河，共五十里矣，遂止居住居民同姓家。
After walking for several more li, I reached Tuling. Tuling was sixty li away from the prefecture city and fifty li southwest of the Sha River. I stayed with a family of the same surname as me in Tuling.