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California

Mad River

California·North Coast·40.91° N, 124.06° W
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Solunar · next 7 days

About Mad River

The Mad is a rain-driven winter steelhead river on California's North Coast, running about 113 miles out of the Coast Range to the Pacific just north of Arcata, wedged between the Klamath and the Eel. For decades its reputation rested on one thing: the Mad River Fish Hatchery at Blue Lake, which pumped adipose-clipped steelhead into a small, wadeable, bank-friendly river and made it one of the more accessible winter steelhead fisheries in the state. Be honest with yourself before you plan a trip — that era is over. CDFW ended hatchery operations at Blue Lake in June 2026, calling the program 'no longer viable,' and released its last fish that spring. The near-term reality is fewer fish; the long-term hope is a wild, self-sustaining run instead of a hatchery-supplemented one. Anyone counting on big hatchery return numbers should reset expectations.

This is not a trout river you sight-fish over a hatch. It's a swing-and-nymph steelhead river you fish when the weather cooperates, and only then. The Mad fishes primarily January into late February, and only after rain: the mouth has to breach and pump fresh fish in, then you fish the drop as it clears. It comes up muddy fast and takes two to four days to green up. Near the Arcata gauge it starts fishing around 8 feet of stage — roughly 1,500 CFS — on a dropping, clearing freshet, and the reach from the Hammond Trail trestle to Cowan Creek is legally closed until the Highway 299 gauge reads at least 200 CFS. Timing the drop is the whole game. When the fish are in, they run big — 8 to 12 pounds on average, with 20-pounders showing most seasons.

Almost all of it is wade and bank water. The productive stretch is the lower 18 miles from the hatchery down to the ocean, and the riffles and runs right below the Blue Lake hatchery are the most heavily fished spot on the river — expect company on a good day. Bair Road holds the deepest, best steelhead water; the Hammond Trail and Mad River County Park spread anglers out toward the mouth. Well upstream, above Ruth Reservoir near Forest Glen, there's a small, brushy wild-rainbow headwater that fishes low and clear in summer — a curiosity for anyone already in the area, not a destination.

Species

  • Winter Steelhead
    Primary · Jan-Feb · 5-20 lbs (avg 8-12)

    The whole show. Historically hatchery-supplemented; the hatchery program ended June 2026, so the run is shifting to wild-only over time. Wild (unclipped) fish are catch-and-release; a steelhead report card is required.

  • Chinook Salmon (fall run)
    Seasonal · Nov-Dec · to ~20 lbs

    Minor fall run that opens after the first rains breach the mouth. Not the draw the steelhead are; check current retention rules.

  • Coho Salmon
    Rare · Nov-Dec · 4-10 lbs

    SONCC coho are federally threatened — no take, do not target. Release any encountered incidentally.

  • Coastal Cutthroat Trout
    Common · Fall-Winter · 8-16"

    Resident and sea-run cutthroat in the lower river and tributaries; incidental for most steelheaders.

  • Resident Rainbow Trout
    Seasonal · Late spring-fall · 6-12"

    Small wild rainbows in the headwaters above Ruth Reservoir near Forest Glen. Remote, low-water, summer-only.

SpeciesAbundanceBest SeasonSize
Winter SteelheadPrimaryJan-Feb5-20 lbs (avg 8-12)
Chinook Salmon (fall run)SeasonalNov-Decto ~20 lbs
Coho SalmonRareNov-Dec4-10 lbs
Coastal Cutthroat TroutCommonFall-Winter8-16"
Resident Rainbow TroutSeasonalLate spring-fall6-12"

Sections

3 reaches

Lower Mad — Blue Lake to the Mouth

WadeSteelhead · Salmon

Deeper pools and runs spread over the lower 18 miles from the Blue Lake Bridge to the Pacific, with more room to spread out than the hatchery reach. Bair Road holds the deepest, best steelhead water; the Hammond Trail access points and Mad River County Park near the mouth spread anglers out. The regulated reach for low-flow closure purposes runs from the Hammond Trail Railroad Trestle up to Cowan Creek.

Best for: Winter steelhead on the drop after storms, plus a small fall Chinook salmon run near the mouth once the first rains breach the sandbar.

Blue Lake / Hatchery Reach

WadeSteelhead

Classic swinging riffles and runs from below the Mad River Fish Hatchery's fish ladders down to the Blue Lake Bridge. This short stretch concentrates the most winter steelhead and is the single most heavily fished piece of the river. The hatchery grounds off Blue Lake stay open sunrise-to-sunset for parking and river access even after the program's June 2026 closure.

Best for: Winter steelhead on swung flies and sink-tips in the faster water, small beaded nymphs in the softer slots. Expect a crowd on a good day.

Upper Mad above Ruth Reservoir

WadeSteelhead · Rainbow Trout

A small, brushy freestone headwater well above Ruth Lake near Forest Glen in southern Trinity County, reading only a few CFS through summer. This is above the dam and is not a steelhead reach — it holds small wild rainbow trout and fishes low and clear.

Best for: Small resident rainbow trout on caddis, attractors, and terrestrials in summer. A curiosity for anglers already in the area, not a destination.

At a glance

Ideal wading flow
1,200–2,800 cfs
Blow-out
>4,000 cfs
Ideal water temp
42–52°F
Best seasons

Winter, full stop. January-February is prime. Fish only the drop after a storm, as flows recede from a blowout back through roughly 1,200-2,800 CFS and the water greens up. December is early and hit-or-miss; March brings spawned-out kelts. No meaningful summer or fall fishery in the lower river.

Regulations

Winter steelhead fishery governed by North Coast anadromous rules and hard low-flow closures. Wild (unclipped) steelhead are catch-and-release; coho salmon are no-take. Regulations change annually and by in-season emergency rule — always confirm before a trip.

  • Low-flow closure: the mainstem from the Hammond Trail Railroad Trestle to Cowan Creek is closed until the Highway 299 bridge gauge reads at least 200 CFS (in effect Sept 1 - Apr 30)
  • Mouth closure: the river from the mouth to 200 yards upstream is closed until Jan 1
  • Wild/unclipped steelhead must be released; where retention is allowed the limit is 2 adipose-clipped (hatchery) steelhead
  • Coho salmon: no take, SONCC coho are federally threatened
  • Anadromous-waters gear restrictions apply (barbless-hook and bait limitations) — verify against current CDFW supplemental regs
  • California sport fishing license plus a steelhead report card required to fish for steelhead

Real-time North Coast low-flow openings and closures are posted at wildlife.ca.gov/Fishing/Inland/Low-Flow/North-Coast — check it the morning you plan to fish. With the hatchery closed, availability of clipped (retainable) fish declines over time.

Source: CDFW Supplemental Sport Fishing Regulations + North Coast Low-Flow closures. Regulations change annually. Verify before fishing.

Getting there

Arcata, CA

5 hrs from San Francisco, 15 min from Eureka

Fly shops

  • Mad River TackleArcata

Camping: Mad River County Park near the mouth; Ruth Lake Recreation Area in the upper basin for the headwater trout side-trip. Abundant lodging in Arcata and Eureka, minutes from the lower river.

The Mad River Fish Hatchery grounds off Blue Lake stay open sunrise-to-sunset for parking and river access even after the hatchery ceased operation. No access fees beyond the state license and steelhead report card. The river blows out muddy fast after rain and takes 2-4 days to clear — watch the Arcata gauge and fish the drop.

No recent fishing reports for Mad River

We aggregate reports from local fly shops, guides, and lodges as they publish. Check back, or browse the shops on the Guide tab.

More in California

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14.4 cfs65°F water

Slow

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Good

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Other regions

East Fork Carson River

46.2 cfs

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East Walker River

113 cfs

Good

Fall River

Good

Feather River

191 cfs52.9°F water

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Hat Creek

111 cfs46°F water

Fair

Hot Creek

35.8 cfs92°F water

Slow
Fishing
Fair
Flow
45.2cfs
steady · Mad River near Arcata
Water temp
—
Flow vs normal
Below Normal
30th percentile for mid-October
Flow
45.2cfs
Mad River near Arcata · stable
Water temp
—
Flow vs normal
Below Normal
30th percentile for mid-October
Median 61 cfs
Weather
54°F
Mostly Clear · near McKinleyville

Fishing conditions

Fair
PoorSlowFairGoodPrime

Best this evening

How we rate this
Sat
10/17
—
MDE
Sun
10/18
—
MDE
Mon
10/19
—
MDE
Tue
10/20
—
MDE
Wed
10/21
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MDE

MmorningDmiddayEevening

poorprime

Today
morning6:29a – 11:29aFairLight wind, 2 mphBright sun
midday11:29a – 2:36pFairLight wind, 2 mphBright sun
evening2:36p – 7:36pFairLight wind, 3 mphFalling pressure
Measured
45 cfs, lowAQI 55

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