Trinity River Fishing Map & Spots (CA)

Hatch outlook

Grasshoppers (east-side summer)Active window

Typical here: Jul 1 – Sep 30 · the East Walker and Upper Owens terrestrial program

adultall day in high summer, best when afternoon wind knocks bugs onto the water

Pulls fish to the windward grassy banks and edges for months — fish the bank the wind blows ONTO.

The friendliest crossover of the summer: on lakes, drift the windward bank with a bubble-and-foam-hopper — the bubble's splash doesn't hurt a hopper presentation. On rivers, the same rig dead-drifted along the undercut grass banks, or small gold spinners under the banks between rises.

The event happens over grassy banks, undercut edges and windward shorelines

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

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Recent catches at Trinity River

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Trinity River on the board.

Fishing Trinity River: what the data says

Lewiston Dam to Junction City: California's premier fly-water steelhead river. The river tops out around 10 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Below is the species-by-species picture, pulled from the same data the map uses.

On the chart, Trinity River draws 683 acres inside 59.8 miles of shoreline. With a shoreline index of 16.3, this water is all arms and coves — edge habitat well beyond its acreage. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Figure 13.1 mi of water from one end to the other, 6.3 mi at the beam. You'll find it in Trinity County. For a second option, Whiskeytown Lake lies 19 mi east.

Steelhead fishing at Trinity River

Spring steelhead on Trinity River hold shallow, usually 2 to 10 ft. Depth-wise the year is flat: 1 to 10 ft in summer, 3 to 10 ft once it turns cold. The chart's best answer is Current seam (mile 16.2) — current seam, 6 ft, prime for summer. Prime time lands in early morning and the evening. The summer box starts with an orange dodger + fly high in the column or a thin spoon off boards.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Current seam (mile 16.2) (6 ft)	Small spoon or spinner at the mouths, Jig + waxworm under float
Summer	1 to 10 ft	dawn & dusk	Current seam (mile 16.2) (6 ft)	Orange dodger + fly high in the column, Thin spoon off boards
Fall	2 to 10 ft	dawn & dusk	Lowhead weir tailrace (9 ft)	Spinner (silver/blue), Casting spoon
Winter	3 to 10 ft	midday	Current seam (mile 16.2) (6 ft)	Float jig (black/purple), Bead rig

Chinook Salmon fishing at Trinity River

The spring pattern is a shallow one: chinook salmon in 1 to 10 ft. The depth story barely changes: 3 to 10 ft through summer, 3 to 10 ft in winter. The spot to know is Lowhead weir tailrace, a dam tailrace in about 9 ft of water that rates prime for chinook salmon in spring. Plan around early morning and the evening in the warm months. Summer baits: a flasher + fly (green/white) or a magnum spoon on downrigger gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 10 ft	dawn & dusk	Lowhead weir tailrace (9 ft)	Trolled spoon (orange/gold), Stickbait off planer boards
Summer	3 to 10 ft	dawn & dusk	Lowhead weir tailrace (9 ft)	Flasher + fly (green/white), Magnum spoon on downrigger
Fall	2 to 10 ft	dawn & dusk	Lowhead weir tailrace (9 ft)	J-plug (glow), Flasher + fly
Winter	3 to 10 ft	midday	Lowhead weir tailrace (9 ft)	Small spoon on a slow troll, Stickbait deep

Brown Trout fishing at Trinity River

Early season brown trout use the shallows, holding in 1 to 10 ft. Even in summer they hold at 3 to 10 ft; winter keeps them in 1 to 10 ft. Put Current seam (mile 16.2) first on the milk run — a current seam near 6 ft that grades prime for summer. In summer the feeding windows fall in after dark and early morning. Tie on a spoon at the thermocline or a deep stickbait (night) and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 10 ft	dawn & dusk	Lowhead weir tailrace (9 ft)	Stickbait off planer boards (shallow), Small spoon along mud lines
Summer	3 to 10 ft	night & dawn	Current seam (mile 16.2) (6 ft)	Spoon at the thermocline, Deep stickbait (night)
Fall	2 to 10 ft	dusk & dawn	Lowhead weir tailrace (9 ft)	Jerkbait over gravel, Casting spoon
Winter	1 to 10 ft	dawn	Lowhead weir tailrace (9 ft)	Jigging spoon, Small stickbait (slow)

Notable structure

Structure-wise the chart holds 14 features, led in depth by Lowhead weir tailrace at roughly 9 ft.

Lowhead weir tailrace: dam tailrace, around 9 ft
Lewiston Dam tailrace: dam tailrace, around 9 ft
Outside-bend hole (mile 3.1): creek channel, around 8 ft
Outside-bend hole (mile 5.9): creek channel, around 8 ft
Outside-bend hole (mile 8.1): creek channel, around 8 ft
Outside-bend hole (mile 11.5): creek channel, around 8 ft
Outside-bend hole (mile 14.0): creek channel, around 8 ft
Outside-bend hole (mile 19.9): creek channel, around 8 ft
Outside-bend hole (mile 22.7): creek channel, around 8 ft
Outside-bend hole (mile 24.9): creek channel, around 8 ft
Outside-bend hole (mile 27.4): creek channel, around 8 ft
Tailout eddy (mile 0.3): eddy pocket, around 6 ft
Tailout eddy (mile 0.3): eddy pocket, around 6 ft
Current seam (mile 16.2): current seam, around 6 ft

Trinity River fishing regulations

Season dates, license requirements, and size and bag limits for California waters are set by the California Department of Fish and Wildlife — and special regulations can apply to Trinity River specifically, so confirm the current rules before you fish.

Check the official California fishing regulations →

Common questions

How deep is Trinity River?

Trinity River is about 10 ft (3 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.

What fish are in Trinity River?

Anglers target steelhead, chinook salmon, brown trout on Trinity River.

Where is the best fishing spot on Trinity River?

Current seam (mile 16.2) is the top-rated area: a current seam in about 6 ft of water that rates prime for steelhead in summer. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Trinity River?

For steelhead, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.

What are the fishing regulations for Trinity River?

Fishing on Trinity River is regulated by the California Department of Fish and Wildlife. Check the official California regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.

Nearby waters

Whiskeytown Lake 19 mi · Sacramento River (Redding) 36 mi · Shasta Lake 37 mi · Kangaroo Lake 47 mi · Campbell Lake 59 mi · Klamath River 73 mi · Silver Lake 94 mi · Squaw Lakes 94 mi, OR · Lake Almanor 98 mi · Butt Valley Reservoir 100 mi · Grizzly Forebay 102 mi · Three Lakes 103 mi

See how Trinity River stacks up: best chinook salmon lakes in California · best steelhead lakes in California · best brown trout lakes in California

Browse all California fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.