In the two years since dam removal on the Klamath River in California and Oregon, fall-run chinook salmon have come back in full force, but water allotments, remaining dams and drought conditions still pose challenges for recovery.By Claire BarberIn August 2024, excavation crews breached the last of four dams on the Klamath River in far northern California, marking the first time in over a century 100 years that salmon could swim above the dam sites.