It shows the location, scientific value and artistic value of Baiheliang Underwater Museum. Located in the Yangtze River north of Fuling City, Chongqing, Baiheliang Underwater Museum is the only ancient hydrological station in the world with “carving stone fish and water level marking symbols”. It enjoys the reputation of “the first ancient hydrological station in the world” and is also the only ancient hydrological observation facility in use until modern times. In 2008, it was included in the preparatory list of World Cultural Heritage.