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Montana

Madison River

Montana·Southwest Montana·45.10° N, 111.65° W
Log an outing

Solunar · next 7 days

About Madison River

The Madison runs about 140 miles from the confluence of the Firehole and Gibbon inside Yellowstone National Park to Three Forks, where it joins the Jefferson and Gallatin to form the Missouri. The famous water is the upper river — 50 miles of continuous riffle and pocket water between Quake Lake and Ennis Lake, often called the 'Fifty Mile Riffle' because there is almost no slow water in the entire stretch. It runs at consistent grade through a wide valley with the Madison Range on one side and the Gravelly Range on the other, and it holds wild rainbows and browns averaging 14-17 inches with enough fish over 20 to keep things interesting. Below Ennis Lake the river drops into Bear Trap Canyon, a Wilderness Study Area with bigger holding water, fewer crowds, and consistent flows from the powerhouse releases. Below Bear Trap the Lower Madison runs warm in summer through the Three Dollar Bridge / Black's Ford / Greycliff stretch, fishing best from October through May.

The Upper Madison fishes well from late spring through late fall. The signature event is the salmon fly hatch — Pteronarcys californica — typically late June into early July, working upstream from Ennis to Lyons Bridge over about two weeks. Caddis are heavy through summer, with PMDs in July, and Tricos and BWOs taking over in fall. The river fishes equally well on dry fly, nymph, and streamer. Walk-and-wade access is the best in the West thanks to FWP fishing access sites every few miles from Quake Lake to Ennis, but float trips out of a drift boat let you cover more water. The float from Lyons Bridge to Palisades or Palisades to McAtee is the classic day. Winter is closed from the third Saturday of November through the third Saturday of May above the Hebgen Dam, and is restricted in the Park section as well — check current FWP regulations.

The corridor town is Ennis, with three established fly shops (The Tackle Shop, Madison River Fishing Company, and the Madison Valley Fly Shop), guides for every section, and lodging from streamside cabins to motels. West Yellowstone serves the upper river near the Park boundary. Drive times: 1 hour from Bozeman to Ennis, 4 hours from Salt Lake City, 5 hours from Billings. Elevation is 4,800-6,500 ft so summer evenings are cold. Wading is straightforward but the bottom is round-cobble freestone — felt or studded rubber soles, and a wading staff is not optional in higher flows. The river runs from late October through early May at very low, clear winter flows where sight-nymphing midges in the slack water around Three Dollar Bridge and Raynolds Pass can be productive on warmer afternoons.

Species

  • Rainbow Trout
    Abundant · Jun-Oct · 12-20"

    Wild population throughout. Best concentrations between Quake Lake and Ennis Lake. Whirling disease hit the Madison hard in the 1990s but rainbows have largely recovered.

  • Brown Trout
    Common · Sep-Nov · 14-24"

    Fall pre-spawn aggression makes streamer fishing very productive Sep-Nov. Highest densities in the Bear Trap Canyon and lower river.

  • Mountain Whitefish
    Common · Year-round · 10-18"

    Native and abundant in all sections. Often hit small nymphs aggressively.

SpeciesAbundanceBest SeasonSize
Rainbow TroutAbundantJun-Oct12-20"
Brown TroutCommonSep-Nov14-24"
Mountain WhitefishCommonYear-round10-18"

Sections

8 reaches

Lower Madison — Greycliff to Three Forks

Wade & FloatBrown Trout · Rainbow Trout

Below Bear Trap the river widens through a valley with mixed access points (Greycliff, Black's Ford, Cobblestone, Warm Springs). Fishes best from October through early June when temperatures are cool. Summer brings hoot-owl restrictions and warm-water stressed trout.

Best for: Brown trout and rainbow trout on streamers, midges, and BWOs. Best Oct-May. Wade or float. Avoid July-August (warm-water mortality risk).

Bear Trap Canyon

Wade & FloatBrown Trout · Rainbow Trout

Nine-mile wilderness canyon below Ennis Dam. Steep walls, big boulders, deep pools — the most dramatic water on the Madison. Foot access only via the Bear Trap trailhead. Rafts and drift boats run it for experienced floaters (Class III at higher flows). Holds the biggest brown trout on the river.

Best for: Brown trout and rainbow trout on streamers and stonefly nymphs. Deep nymph rigs and sink-tip streamers. Best Sep-Jun (lower flows). Skip during high releases.

Varney to Ennis

Wade & FloatBrown Trout · Rainbow Trout

Final stretch of the upper river before Ennis Lake. Hopper fishing along the cut banks is the staple. Town of Ennis bracketed by Eight Mile Ford and the FWP boat ramp.

Best for: Rainbow trout and brown trout on hopper-dropper, attractor dries, and streamers. Evening caddis fall. Easy access from Ennis.

McAtee Bridge to Varney (Three Dollar Bridge)

Wade & FloatRainbow Trout

The 'Three Dollar Bridge' stretch — historic access point known nationally. Wider, slightly slower water with productive insect hatches. The slick water around Three Dollar holds selective rainbow trout that test PMDs and Tricos with long leaders.

Best for: Rainbow trout on technical dry fly. PMDs, BWOs, Tricos. Best for wade anglers willing to slow down and sight-fish.

Palisades to McAtee Bridge

Wade & FloatBrown Trout · Rainbow Trout

Continuation of the upper river through the wider valley. River braids slightly and gathers spring inflow that holds fish through warmer summer water. McAtee is the take-out for the day float; the next stretch downstream sees fewer boats.

Best for: Rainbow trout and brown trout. Hopper fishing in summer; caddis evenings; nymphing the inside seams. Less crowded than the upper sections.

Lyons Bridge to Palisades

Wade & FloatSalmon · Brown Trout · Rainbow Trout

The classic float section of the upper Madison. Continuous riffles and pocket water with no slow stretches. Drift boats are the standard, but bank access at Lyons, Reynolds Pass, Palisades, and points between is excellent for wading. Bigger fish in the deeper runs along the cut banks.

Best for: Wild rainbow trout and brown trout. Float fishing with hopper-dropper, salmon fly dries, or streamers off the boat. The signature Madison float.

Quake Lake to Lyons Bridge

Wade & FloatSalmon · Brown Trout · Rainbow Trout

Classic riffle-and-pocket-water below the outlet of Quake Lake — the start of the 'Fifty Mile Riffle'. Consistent grade, round-cobble bottom, FWP access points every few miles. Salmon fly hatch peaks here last week of June into the first week of July.

Best for: Wild rainbow and brown trout. Dry fly and nymph fishing throughout summer. Salmon flies in late June; PMDs and caddis through August.

Hebgen Tailwater — Hebgen Dam to Quake Lake

WadeBrown Trout · Rainbow Trout

Three-mile tailwater between Hebgen Dam and the head of Quake Lake. Slick spring-creek style water with consistent flows and selective rainbows and browns from 14-20 inches. Wading only; small flies on long leaders.

Best for: Rainbow trout and brown trout on technical dry fly and small nymphs. PMDs and Tricos in summer; midges all winter. Best Apr-Nov.

At a glance

Ideal wading flow
800–1,800 cfs
Blow-out
>3,500 cfs
Ideal water temp
48–62°F
Best seasons

Late June into early July for the salmon fly hatch. July-August for caddis, PMDs, and hopper fishing. September-October for fall BWO, Tricos, and aggressive pre-spawn browns. Closed above Hebgen through winter.

Regulations

Open seasons vary by section. Catch-and-release on rainbows from Quake Lake to Ennis Lake all year (when open). Two trout daily, only one over 18 inches, with restrictions varying upriver and downriver. Always check current regulations — sections change frequently.

  • Quake Lake to Ennis Lake: open year-round; rainbows catch-and-release; 2 trout daily, only 1 over 18 inches (browns/whitefish)
  • Ennis Lake to Ennis Dam (Bear Trap Canyon): year-round; standard limits
  • Below Ennis Dam (Lower Madison): year-round; standard limits
  • Hebgen Dam to Quake Lake outlet: 3rd Sat May through Nov 30; standard limits
  • Yellowstone National Park section: separate Park fishing permit required; flies/lures only

Madison FWP regulations have changed often in recent years. Hoot owl (afternoon closure) restrictions apply on the Lower Madison in hot/low summers — check the FWP Hoot Owl page before fishing in July-August.

Source: Montana Fish, Wildlife & Parks — Fishing Regulations. Regulations change annually. Verify before fishing.

Getting there

Ennis, MT

1 hr from Bozeman, 4 hrs from Salt Lake City, 5 hrs from Billings

Fly shops

  • The Tackle ShopEnnis
  • Madison River Fishing CompanyEnnis
  • Blue Ribbon FliesWest Yellowstone
  • Madison River OutfittersWest Yellowstone

Camping: Beaver Creek, Cabin Creek, and West Fork campgrounds along the upper river. Streamside cabins and motels in Ennis. West Yellowstone is the upper-river base camp with full services.

FWP fishing access sites every few miles between Quake Lake and Ennis. Highway 287 parallels the upper river. Bear Trap Canyon access is foot-only from the trailhead at the Bear Trap parking area. Lower Madison has access at Greycliff, Black's Ford, and Cobblestone.

Fishing reports

Recent reports from local fly shops, guides & lodges on Madison River. Each links out to the source. We show a short attributed excerpt and never republish the full report.

Madison River Outfitters · West Yellowstone6 days ago
Fishing Report - 10/8/2026

“Who would've thought we would be eagerly awaiting crappy weather, and yet here we are! More”

Madison River Outfitters · West Yellowstone6 days ago
Fishing Report - 10/9/2026

“Who would've thought we would be eagerly awaiting crappy weather, and yet here we are! More”

Madison River Outfitters · West Yellowstone13 days ago
Fishing Report - 10/2/2026

“As this (beautiful) sunny, crisp weather persists, fishing has been fairly... inconsistent. It's not that fish aren't eating... More”

Madison River Outfitters · West Yellowstone2 weeks ago
Fishing Report - 9/25/2026

“Conditions on the Madison have just continued to get better! Bite windows are opening up to span pretty much the entire day, and fish are much less picky about their meals. More”

Madison River Outfitters · West Yellowstone3 weeks ago
Fishing Report - 9/18/2026

“Montana Flows/Temperatures (as of September 17th; click the name for real-time numbers) Hebgen Outflow - 759.9 CFS Kirby - 864 CFS Kirby High/Low Temps - 62°/53°F Cameron - 926 CFS Cameron High/Low Temps - 60°/54° F This Week's Weather Forecast in the Valley Upper Madison Fall…”

Madison River Outfitters · West Yellowstone4 weeks ago
Fishing Report - 9/11/2026

“Although the colder weather did widen out the time slots fish are eating in, fishing is still a little... More”

Madison River Outfitters · West Yellowstone5 weeks ago
Fishing Report - 9/4/2026

“Montana Flows/Temperatures (as of September 3rd; click the name for real-time numbers) Hebgen Outflow - 759.9 CFS Kirby - 875 CFS Kirby High/Low Temps - 61°/54°F Cameron - 949 CFS Cameron High/Low Temps - 58°/54° F This Week's Weather Forecast in the Valley Upper Madison After…”

Madison River Outfitters · West Yellowstone6 weeks ago
Fishing Report 8/28/2026

“Montana Flows/Temperatures (as of August 27th; click the name for real-time numbers) Hebgen Outflow - 760 CFS Kirby - 875 CFS Kirby High/Low Temps - 69°/57°F Cameron - 971 CFS Cameron High/Low Temps - 66°/59° F The Weeks Weather Forecast in the Valley Upper Madison The Upper…”

Madison River Outfitters · West Yellowstone7 weeks ago
Fishing Report - 8/21/2026

“The Upper Madison has been in great shape recently. That colder week really helped add some more energy into the river, More”

Madison River Outfitters · West YellowstoneAug 14, 2026
Fishing Report - 8/14/2026

“The rain and cooler weather I've been anticipating arrived Wednesday afternoon, and as the water temperatures show, we're in for a big change in how the Madison is fishing. More”

Madison River Outfitters · West YellowstoneAug 7, 2026
Fishing Report - 8/7/2026

“The cooler weather on Monday and Tuesday was truly bliss after weeks of 85° and above on the Madison. A few cold nights really did wonders... More”

Madison River Outfitters · West YellowstoneJul 31, 2026
Fishing Report - 7/31/2026

“Montana Flows/Temperatures (as of July 30th, click the name for real-time numbers) Hebgen Outflow - 1,440 CFS Kirby - 1,500 CFS Kirby High/Low Temps - 68°/60° F Cameron - 1,500 CFS Cameron High/Low Temps - 70°/60° F Upper Madison We've settled into the dog days of summer…”

Madison River Outfitters · West YellowstoneJul 24, 2026
Fishing Report 7/24/2026

“The Upper Madison has slowed a bit with the heat, being at it's best in the early mornings or late at night. I've been having some success throwing... More”

Madison River Outfitters · West YellowstoneJul 17, 2026
July 17th Fishing Report - Madison River Outfitters

“The Upper Madison is still fishing steadily, especially in the morning and later evenings. With the hot weather we had this last weekend and the hesitant water releases from Hebgen, I was getting a bit nervous about how the Madison would be fairing at this point... More”

More in Montana

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Jefferson River

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Ruby River

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Yellowstone River

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Other regions

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Bitterroot River

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Clark Fork River

193 cfs48°F water

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Flathead River

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Kootenai River

4,240 cfs55°F water

Good
Fishing
Fair
Flow
303cfs
steady · Madison R near West Yellowstone
Water temp
52°F
Madison R near West Yellowstone
Flow vs normal
Well Below Normal
10th percentile for mid-October
Flow
303cfs
Madison R near West Yellowstone · stable
Water temp
52°F
Madison R near West Yellowstone
Flow vs normal
Well Below Normal
10th percentile for mid-October
Median 415 cfs
Weather
30°F
Mostly Clear · near Big Sky

Fishing conditions

Fair
PoorSlowFairGoodPrime

Latest report: Fishing Report - 10/8/2026 from Madison River Outfitters, 7 days ago

How we rate this
Fri
10/16
—
MDE
Sat
10/17
—
MDE
Sun
10/18
—
MDE
Mon
10/19
—
MDE
Tue
10/20
—
MDE

MmorningDmiddayEevening

poorprime

Today
morning6:43a – 11:43aFairCalm windRising pressure
midday11:43a – 2:43pFairLight wind, 3 mphRising pressure
evening2:43p – 7:43pFairFalling pressure
All day
Bright sun
Measured
303 cfs, low55°F, ideal

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