Reservoirs behind three of the Klamath River dams were drawn down starting last January; by Oct. 2, the barriers were fully removed. Just days later, the first Chinook was discovered in Jenny Creek in California’s Siskiyou County. On Oct. 16, biologists from Oregon Department of Fish and Wildlife and the Klamath Tribes spotted the first Chinook in a key tributary in Oregon, above all four of the former dams.