Fish ladder......

[Justdroppedin]

This is a fish ladder on the Sorne in the Pichoux Gorge, Switzerland. It is a prefabricated with 24 tanks & elevation gain of 12.5 feet/3.80 m & it was built to allow fish to migrate varied elevations between lakes & rivers. Fish swim up the gradual level between pools: uphill....

https://i.redd.it/bz1ss2o0t3u41.jpg