Cutthroat Trout

Idaho's state fish, the cutthroat trout, is named for the distinctive red-orange slash marks on its throat. Native to the region, cutthroat offer a true wilderness fishing experience and are known for their willingness to rise to dry flies.

Habitat

Cutthroats prefer cold, high-elevation streams and alpine lakes with excellent water quality. They are less tolerant of warm temperatures than rainbow trout.

Feeding & Timing

Aggressive surface feeders during summer months. They often stay in the top of the water column to intercept drifting insects.

Best windows: Mid-morning to late afternoon during hatch cycles.

Season Overview

Peak cutthroat fishing is typically July through September after spring runoff clears.

Tactics That Work

• Cutthroat are aggressive and less selective than rainbows
• Attractor dry flies work well in mountain streams
• Hike to remote water for the best native populations

Productive baits and patterns: Elk Hair Caddis, Stimulators, Royal Wulff, Small Spinners (Panther Martin), Grasshopper terrestrial patterns.

Regulations

• Many waters are catch-and-release only for cutthroat
• Wild cutthroat often have reduced limits (2 fish)
• Check specific water regulations carefully

Always confirm with the current IDFG rule book before heading out — limits and seasons change by water.

Idaho state record: N/A (subspecies vary).