I saw a poster last fall at a fish hatchery just outside of Tillamook, OR that showed projected fish migrations for Chinook, Coho, and Steelhead. There were three concentric circle each a little wider than the other. They indicated that the Chinook make the smallest circle out into the Pacific, Coho the second largest, and Steelhead actually going the furthest north and the furthest west, hugging the coasts of Russia and Korea before heading back to North America. I've tried to get a copy of this poster. It was issued by the Tillamook Bay National Estuary Project through Whiskey Creek Hatchery. HT