1996, Committee on Protection and Management of Pacific Northwest Anadromous Salmonids, National Research Council, Upstream: Salmon and Society in the Pacific Northwest, page 105,
Overall, OCN coho constitute the largest aggregate of coho populations in the United States outside Alaska.
Source: wiktionary
Since 1965, an index live-count method has been used to annually estimate the number of coho salmon in the escapement to the Skagit River.
Source: wiktionary
2000, US Department of Agriculture, Forest Service Sitka Ranger District, Alaska Department of Fish and Game, Redoubt Lake Cabin, Baranof Island: Fish and Wildlife Opportunities, unnumbered page,
Redoubt Lake has good populations of both coho and sockeye salmon and minor runs of pink salmon and a few chum salmon. The sockeye run peaks during early July, and the coho run begins in August.
Source: wiktionary