Troutline

Buffalo Fork River

Wyoming·Jackson Hole·43.85° N, 110.44° W
Flow
768 CFS
Buffalo Fork ab Lava Creek nr Moran, WY
Water Temp
61°F
Buffalo Fork ab Lava Creek nr Moran, WY
Condition
Below Normal
Weather
61°F
Mostly Cloudy
near Kelly

Insights

Water Temp
Water 61°F — prime
Active-feeding window.
Flow
Low flows at 768 CFS
Fish are spooky. Lighten tippet and lengthen leaders.
Snowpack
Snowpack snowpack update
Snowpack data for Buffalo Fork River basin is limited right now. The June–July runoff forecast for Buffalo Fk ab Lava Ck nr Moran is 75% of average.

The Buffalo Fork is the wild, back-of-beyond cousin to the Snake River it feeds. It runs off the Continental Divide near Togwotee Pass, gathers its North and South Forks deep in the Teton Wilderness of the Bridger-Teton, and comes together in Buffalo Valley before joining the Snake near Moran, just east of Grand Teton National Park. This is Snake River fine-spotted cutthroat water almost top to bottom — the fine-spotted subspecies you won't find much of anywhere outside this drainage — with mountain whitefish thick enough that during a good stonefly emergence even they come up to eat dries. Fish run 8 to 18 inches, the honest average being a wild 10-to-14-inch cutthroat that eats a big dry without much argument. Nobody comes here for numbers of giants; they come for the setting and for cutthroat that behave like cutthroat should.

Practically, it fishes two very different ways. The lower river along Buffalo Valley Road is a classic small freestone float — the standard run is Turpin Meadow down to the US-287/89 junction, roughly 14 river miles in about three hours, on a raft or small drift boat throwing attractor dries (Chubbys, Stimulators, PMX) to the banks and seams. You can also wade-and-shore-fish it from the pullouts along Buffalo Valley Road once flows drop. Upstream of Turpin Meadow the North and South Forks become a genuine backcountry trip: you hike or pack in, and the reward is legendary stonefly fishing and cutthroat that see almost no pressure. A 9-foot 4- or 5-weight, floating line, and a box of attractors and stoneflies covers nearly every day out here.

The catch is timing. This is snowmelt water with no dam to steady it, so it runs high and off-color through June and into July — it sat around 900 CFS at the Lava Creek gauge on July 10, 2026, still dropping off runoff — and the North Fork is famously the last river in the valley to clear. The window that matters is August into early September, when flows settle in, the forks finally clear, and the fish are looking up. It's grizzly country: the wilderness reaches genuinely require bear-country discipline, and most people fish the upper forks on a multi-day pack trip rather than a day hike. Access to the lower river is easy and mostly public via Buffalo Valley Road and the Forest Service; the marquee private-water access is at Turpin Meadow Ranch. If the Snake proper is blown out or crowded, the lower Buffalo Fork is the obvious pressure-relief valve within the Jackson hub — and the upper forks are their own destination for anglers who want to walk away from the drift-boat traffic entirely.

Species

  • Snake River Fine-Spotted Cutthroat Trout
    Abundant · Jul-Sep · 8-18"

    Dominant top to bottom — the fine-spotted subspecies endemic to this drainage. Average fish is a wild 10-to-14-inch cutthroat that eats attractor dries willingly; the better fish come once flows clear in August. Fine pepper-like spotting concentrated toward the tail.

  • Mountain Whitefish
    Abundant · Jul-Sep · 8-16"

    Native and thick throughout. Takes small nymphs readily and — unusually — will rise to the surface during a heavy stonefly emergence. A reliable by-catch and a fun shoulder-season target when the cutthroat go quiet.

  • Brook Trout
    Present · Aug-Sep · 6-11"

    Small numbers reported in some headwater and tributary reaches of the greater drainage, not the mainstem focus. A small-water diversion up high rather than a reason to come.

Ideal wading flow150400 CFS
Blow-out>800 CFS
Ideal water temp5062°F

August into early September is prime — flows settle in, the forks finally clear, and the cutthroat look up for hoppers and big attractor dries. Mid-to-late July is the stonefly window as runoff drops: salmonflies and golden stones, timed entirely to the Lava Creek gauge (13011900) coming down off its snowmelt peak. September brings fall cutthroat, BWOs on overcast days, and fewer people, though cold nights slow things down. Spring through mid-July is heavy off-color runoff with no dam to buffer it — effectively a write-off until the gauge drops into a fishable, clearing window (generally the low hundreds of CFS).

Sections

3 sections on this river

North Fork Buffalo Fork — Teton Wilderness

WadeCutthroat

Wilderness freestone pocket water and pools reached on foot or by pack stock from the Turpin Meadow trailhead into the Bridger-Teton. Tight, wild, and small, with over 80 percent of the drainage in wilderness or primitive settings. Famous as the last water in the valley to clear after runoff, so it fishes best late July onward.

Best for: Wild, unpressured Snake River fine-spotted cutthroat on big dries and legendary stonefly patterns. A multi-day pack trip in grizzly country, not a day hike.

Lower Buffalo Fork — Turpin Meadow to the Snake Confluence

Wade & FloatCutthroat · Whitefish

The easy-access, float-friendly heart of the drainage through Buffalo Valley — small-to-medium freestone with riffle-run-pool water, cut banks, gravel bars, and willow-lined braids. The standard float runs Turpin Meadow down to the US-287/89 junction, about 14 miles in three hours on a raft or small drift boat, throwing attractor dries and hopper-dropper rigs to the banks. Wadeable from Buffalo Valley Road pullouts once summer flows drop and it clears to a green tint.

Best for: Snake River fine-spotted cutthroat on Chubbys, Stimulators, and hoppers, with mountain whitefish as by-catch. The pressure-relief option when the Snake is crowded or blown out.

South Fork Buffalo Fork — Teton Wilderness

WadeCutthroat

The other half of the classic forks pack trip — wilderness freestone similar to the North Fork but clearing somewhat earlier in the season. Pack or hike in from Turpin Meadow and camp at the forks confluence. Small, wild pocket water and pools that see almost no pressure.

Best for: Backcountry Snake River fine-spotted cutthroat on dry flies and stoneflies. Wilderness solitude for anglers willing to walk in.

Regulations

Current fishing rules and restrictions

The Buffalo Fork sits in Wyoming Game & Fish Area 1 (Snake, Salt, Greys, Hoback, Gros Ventre, and Buffalo Fork drainages). It fishes under the general Area 1 stream regulations, with cutthroat-specific limits on the creel. Wyoming made Snake River drainage changes effective January 1, 2026 — confirm current-year rules against the Chapter 46 regulations before fishing.

  • Artificial flies and lures only; use or possession of live baitfish is prohibited throughout Area 1
  • General Area 1 stream creel limit: 3 trout daily; no more than 1 trout over 16"
  • No more than 1 cutthroat over 12" in the daily limit
  • Combined stream-and-lake daily total of 6 trout
  • Wyoming fishing license and Conservation Stamp required (nonresident daily and annual options via WGFD)

The upper North and South Forks lie within the Teton Wilderness — no permit is needed to fish, but the reaches require real backcountry logistics and bear-country food storage in grizzly habitat. Wyoming's January 2026 Snake-drainage regulation changes touched several reaches; verify whether any current-year change affects the Buffalo Fork specifically.

Source: Wyoming Game and Fish Department — Fishing Regulations (Chapter 46, Area 1). Regulations change annually — verify before fishing.

Access & Logistics

Getting there, fly shops, and lodging

Getting There

Moran, WY

~30 miles / ~40 min from Jackson to Buffalo Valley; Jackson Hole Airport (JAC) ~40 min from the lower river.

Camping & Lodging

Forest Service campgrounds line Buffalo Valley Road — Turpin Meadow, Box Creek, and Hatchet — with dispersed camping across the Bridger-Teton. Turpin Meadow Ranch and Heart Six Guest Ranch offer lodging right on the water. Backcountry parties camp at the North/South Fork confluence for the forks pack trip (bear-country food storage required). Full services are ~40 minutes south in Jackson.

Lower-river access is easy and mostly public via Buffalo Valley Road (off US-26/287) and Forest Service land, with pullouts for shore and wade access. The upper forks are wilderness — hike or pack in from the Turpin Meadow trailhead. This is grizzly country; carry bear spray and store food properly. Wyoming fishing license required.

Conditions data is live from public monitoring networks. Regulations change annually — always verify current rules with your state fish & wildlife agency before fishing.

More in Wyoming

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Other regions

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Central Wyoming's string of dam-controlled tailwaters — Miracle Mile, Fremont Canyon, and the Blue Ribbon Grey Reef — supports more than 8,000 wild rainbow trout per mile in the upper Grey Reef reach. Year-round sow bug, scud, midge, and BWO fishing with brown trout streamer windows in fall and spring.