Bonneville Dam on the Columbia River - You can tour the dam and from inside there are windows to watch fish travel up the ladder. They seasonally recruit people to monitor and count to get a rough estimate of fish population. You can also watch from above. It’s amazing.
https://youtu.be/tElnn3GegLE
Bonneville Dam on the Columbia River - You can tour the dam and from inside there are windows to watch fish travel up the ladder. They seasonally recruit people to monitor and count to get a rough estimate of fish population. You can also watch from above. It’s amazing.