Fun fact, Oregon's name traces back to Iberian scouts referring to Celilo Falls "Very Loud Water"
The largest fish migration in the world used to pass through these falls, including the nearly 100 pound "June Hog" strain of Chinook Salmon. That strain has been wiped out by the loss of environment due to damming and fish populations are in a downward spiral to this day
The audio is from a radio show in the 90s covering salmon being added to the Endangered Species Act
I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy: