Although the 50-mile long Hanford Reach has long been considered the last free-flowing stretch on the Columbia River above Bonneville Dam, it’s actually tucked into a large and very complex system of hydroelectric dams.
![HANFORDREACH1c1024x599 Columbia Basin Bulletin](https://columbiabasinbulletin.org/wp-content/uploads/2020/07/HANFORD-REACH-1c-1024x599-1.jpg)
Although the 50-mile long Hanford Reach has long been considered the last free-flowing stretch on the Columbia River above Bonneville Dam, it’s actually tucked into a large and very complex system of hydroelectric dams.