In 1412, along the sea to the north of present Gaoqiao Town in Chuansha could be seen heaped-up mountains with beacon station, to facilitate passage of ships.

• 明永乐十年（1412年），今川沙高桥镇北临海处筑起土山，设烽堠，以利船舶进出长江，成为海运贮粮的集散点，时称“宝山”。