According to the Planning of the Ordinary Provincial Highway Network in Chongqing Municipality (2025-2035), Provincial Highway S101 starts from Shichuan Town.
根据《重庆市普通省道公路网规划（2025—2035年）》，S101省道起点为石船镇。
https://jtj.cq.gov.cn/igixmj/gkyjzj/202508/tOpinion_6811.html