《徐霞客游记·楚游日记十二》
翻过岭，路折向正北方，我们又从小路往西北进了山，共走五里，抵达石门蒋家的居住处。
越岭，路转纯北正北，复从小径西北入山，共五里而抵石门蒋氏。
After climbing the ridge, the road turned to the cardinal north. We followed a trail and went northwest into the mountains for five li before arriving at the home of the Jiang family in Shimen.