《徐霞客游记·游雁宕山日记后》
于是从犁头庵出来，经过南阁，询问王子晋仙桥，得知在北阁底，还有二十里路程。
遂出过南閤，访子晋仙桥，在北閤底尚二十里。
So [the author] walked out of the Li'tou Hermitage, passed by the South Pavilion, asked someone about the Prince Jin's Fairy Bridge and was told that it's at the foot of the North Pavilion and still about twenty _li_ away.