ScienceKlamath River, near the former Iron Gate Dam
Chinook salmon returned to 88% of their old Klamath habitat after the dams came down
After four Klamath River dams were removed in 2024, sonar counts recorded 7,742 Chinook passing the former dam sites that fall and more than 13,000 in 2025. The fish spread through 214 miles blocked for about a century.
Verified · Mongabay