Coastal Cutthroat Trout
The wild card of Pacific trout, the coastal cutthroat is a subspecies of cutthroat trout native to the Pacific Coast from northern California to southern Alaska.
No other cutthroat subspecies enters saltwater — sea-run fish patrol estuaries and nearshore beaches before returning to freshwater, while resident fish may spend their entire lives in a tiny headwater stream.
That flexibility, combined with a willingness to eat that most trout don't share, makes them one of the more accessible and rewarding native trout to chase on the Pacific Coast.
Also known as Sea-run cutthroat, Blue-back trout, Harvest trout
- Red, orange, or yellow slash marks under the lower jaw are the defining field mark — present on both freshwater and sea-run forms, though sometimes faint on silvery fish fresh from salt.
- The upper jaw extends noticeably past the rear edge of the eye, even on small fish — a reliable separator from rainbow trout where the two overlap and hybridize.
- Irregular black spots scattered heavily across the entire body, below the lateral line, and onto the paired and anal fins — denser spotting than most other Pacific trout.
- Color varies dramatically by life history: freshwater residents run golden-yellow with vivid spots; sea-run fish are bluish-silver with olive backs and subdued markings. Most fish run 12–18 inches; lake-dwelling populations can push past 24 inches.
What to know
Habitat Distribution
- Native to the Pacific Coast from the Eel River drainage in northern California north through the Pacific Northwest and into Prince William Sound, Alaska — generally within about 100 miles of the ocean, bounded inland by the Cascade and Coast ranges.
- The only cutthroat subspecies that uses marine environments; anadromous fish move into estuaries, lagoons, and nearshore saltwater but make shorter migrations than other Pacific salmon and trout — typically within 5–10 miles of natal streams, though some travel farther.
- In freshwater, occupies a wide range of water types: small headwater bog streams, low-gradient coastal rivers, beaver ponds, and large lakes — all requiring cool, clean water with adequate summer holding pools.
Specific Spots
- In streams, cutthroat hold in pools behind fallen logs and beneath undercut banks — the slower, shadowed water where they can intercept drifting food without burning energy in current.
- Rocky shorelines and overhanging brush concentrate both cover and forage; fish tuck tight to structure and move short distances to intercept prey rather than chasing it into open water.
- Sea-run fish in estuaries and lagoons behave differently — they're actively cruising shoreline edges and channel margins on the hunt, so covering water matters more than pinpointing a single lie.
Coastal Cutthroat Trout FAQ
Answers from onWater's species guide.
What are the best lures and bait for Coastal Cutthroat Trout?
Small spinners and spoons in silver or gold, up to a quarter ounce, are the go-to hardware across the range. The flash and vibration draw strikes in both clear streams and murky estuary water.
What flies work for Coastal Cutthroat Trout?
In freshwater streams, a streamer stripped or swung (cast across current and allowed to swing downstream on a tight line) near woody cover is the most consistent producer, Woolly Buggers and small Muddler Minnows imitate both baitfish and large invertebrates.
What do Coastal Cutthroat Trout eat?
In freshwater, the bulk of the diet is aquatic invertebrates, mayfly and stonefly nymphs, caddis larvae, plus terrestrial insects that fall to the surface. Nymph patterns like a Pheasant Tail or Hare's Ear (imitating mayfly nymphs) and elk hair caddis dries cover most of this feeding.
Where do Coastal Cutthroat Trout live?
Native to the Pacific Coast from the Eel River drainage in northern California north through the Pacific Northwest and into Prince William Sound, Alaska, generally within about 100 miles of the ocean, bounded inland by the Cascade and Coast ranges.
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