Over a century of water and land use changes have led to catastrophic declines in salmon populations in rivers throughout California. Now, a groundbreaking collaboration between state and federal agencies and California’s Winnemem Wintu Tribe is taking a new approach: bringing winter-run salmon back to their ancestral waters above Shasta Dam. We spoke with NOAA’s Rachel Johnson to learn more.

For more on the project, see this feature from the Public Policy Institute of California (PPIC).