Coho salmon have pushed more than 90 miles up California’s Russian River, reaching the watershed’s upper basin for the first time in more than three decades — the latest of many recent milestones for the endangered fish. State wildlife officials confirmed Thursday that a handful of young coho were spotted over the summer in Ackerman Creek, a tributary of the Russian River near Ukiah, in Mendocino County. The juveniles are believed to have been spawned by adults that migrated from the Pacific Ocean on a course rife with human-imposed obstacles, including sediment washed in from forest clear-cuts and water reductions due to agricultural pumping.

Other salmon news:

• Seafood Source: NOAA Fisheries denies ESA listing for Chinook salmon in Oregon, Northern California
• Northwest Sportsman: First Upper Klamath Chinook poached​