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Chinook Salmon

Chinook Salmon

Chinook salmon, also known as king salmon, are Idaho's largest salmon species and one of the most prized gamefish. These native fish are anadromous, meaning they migrate to the ocean and return to freshwater to spawn and die.

Idaho's Chinook populations are conservation-reliant and face challenges from habitat loss, dams, and climate warming.

Also known as king salmon

Physical Characteristics:
  • They range from 18-40 inches and can reach 45 pounds, with silver to olive-colored bodies and distinctive black mouths.

What to know

Habitat Distribution

  • Spring and summer Chinook spawn in tributary streams to the Clearwater and Salmon rivers, while fall Chinook spawn in the main stem Clearwater, Salmon, and Snake rivers.

Key Locations

  • Prime locations include the Clearwater River near Lewiston for ocean-fresh fish, the Salmon River from Riggins upstream to Stanley, the Snake River from Lewiston to Brownlee, and Lake Coeur d'Alene.
  • Idaho's prime Chinook waters include the Clearwater River system (famous for large B-run fish), the Salmon River basin (historically the most productive Chinook spawning area in the Columbia basin), the Snake River, and select lakes like Coeur d'Alene.

Specific Spots

  • Focus on travel lanes and rest spots during high water.

Chinook Salmon FAQ

Answers from onWater's species guide.

What are the best lures and bait for Chinook Salmon in Idaho?

Effective baits include cured roe or spawn sacs, soft plastic beads (14-16mm in orange, red, peach, chartreuse), prawns, shrimp, and artificial baits.

When is the best time to fish for Chinook Salmon in Idaho?

Spring and early summer runs (April through August) and fall runs (September through November), but avoid fishing during spawning periods (August-September for spring/summer runs, October-November for fall runs).

How do you catch Chinook Salmon in Idaho?

Productive techniques include drift fishing, float fishing, plunking, bobber dogging, jigging, and various boat methods like back trolling and side drifting.

What do Chinook Salmon eat?

As juveniles in freshwater, they feed on both aquatic and terrestrial insects, switching to a fish-based diet in saltwater. Returning adults don't actively feed, living off stored energy reserves.

Where do Chinook Salmon live in Idaho?

Spring and summer Chinook spawn in tributary streams to the Clearwater and Salmon rivers, while fall Chinook spawn in the main stem Clearwater, Salmon, and Snake rivers.

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Idaho licenses and regulations

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