belorn, this has long been a big problem in all of the US west. This article starts with a good, quick history of that problem. https://pcffa.org/dams-and-salmo

belorn, this has long been a big problem in all of the US west. This article starts with a good, quick history of that problem. https://pcffa.org/dams-and-salmon/ https://pcffa.org/dams-and-salmon/ Here's another about the problem with Columbia River (Washington) dams. https://www.theguardian.com/environment/2021/jun/09/salmon-future-us-dams https://www.theguardian.com/environment/2021/jun/09/salmon-f...