Chinook Salmon
Photo: Unknown author, Public domain
Lewis and Clark first encountered massive runs of chinook salmon near the confluence of the Snake and Columbia Rivers in mid-October 1805. Clark was confused by the enormous numbers of dead salmon lining the riverbanks, writing “The Cause of the emence numbers of dead Salmon I can’t account for” — he was witnessing the post-spawning die-off. Salmon were a critical food source traded from Native peoples throughout the Columbia Basin. The chinook is the largest Pacific salmon species.
Journal Excerpt
Clark, October 16, 1805: "Took our Canoes and all baggage over by land to the other Side of the rapid, and down to the river… I observe great numbers of dead Salmon on the Shores and floating in the water. The Cause of the emence numbers of dead Salmon I can't account for."
Journal References
15 journal entries mention Chinook Salmon