Past industrial traces of the Jasień River in the tourism space of Łódź

In the paper the characteristics of one of the most valuable rivers in Łódź, the Jasień, are described. The Jasień is a unique example of a river once working for industry but now existing as untapped tourism potential despite its negative image and even being partly forgotten. The description of the most valuable historical hydro-technical work along the river’s course is given with some useful historical information. In the summary, a suggestion of how the river bank might become a trigger for studying Łódź’s history, as its industrial development was so strongly related to the river network.