《太平广记·卷二百零一·才名（好》
贞元年间，房琯为了游客能顺利观赏这个绝妙的风景胜地，辞去县令，带人去铲除林木，凿通隧道，开通去石溪的道路。
贞元中，琯以宾客辞为县令，乃铲翳荟，开径隧，人闻而异焉。
During the Zhenyuan period, in order to allow tourists to enjoy this wonderful scenic spot, Fang Guan resigned as the county magistrate, led people to remove trees, dig tunnels, and open up roads to Shixi.