The South Fork of the Snake River is a tailwater in Idaho, listed as Special-regulation trout water by Idaho Department of Fish and Game.
2 USGS gauges on the water report flow; Idaho Department of Fish and Game lists 5 species, including brown trout, cutthroat trout and mountain whitefish. 4 guides and 2 shops nearby are listed here; the nearest destination hub is Jackson Hole.
The South Fork of the Snake River, Idaho (BLM). Photo: Bob Wick / Bureau of Land Management, public domain, via Wikimedia Commons
South Fork of the Snake River is a tailwater in Idaho. Our destination hub Jackson Hole is 25 mi away in a straight line (55 by road).
Pick one of its USGS gauges and hear from us when the flow moves into or out of its usual range for the date, or crosses a flow you set. We check the public USGS reading every 2 hours and email only when it crosses, at most once every 6 hours. Flow alone is not a fishing forecast or a safety call.
Signed in: one step. Otherwise we email a confirmation link first. Every alert has one-click links to stop it.
Start from the agency's public access map. Nothing on this page grants or implies access: check the agency map, posted signs and landowner permission before you fish.
Nothing on this page grants or implies access.
Gauges, shops and guides within 40 miles
Map of South Fork of the Snake River: gauges, shops and guides
Map of South Fork of the Snake River with 2 USGS gauges.
Restrooms within 2 miles of South Fork of the Snake River in a straight line, nearest first, with what anglers found when they went. The map says a restroom is there, not whether it is clean or open today.
Map of 2 restrooms near South Fork of the Snake River
Skip the map; every place is in the list belowMap of 2 restrooms near South Fork of the Snake River, numbered as in the list, with the water’s point marked.
Not rated yet — be the first to tell other anglers if it's clean.
Mapped on OpenStreetMap · see or fix it on the map
Not rated yet — be the first to tell other anglers if it's clean.
Mapped on OpenStreetMap · see or fix it on the map
Restroom locations and map details: © OpenStreetMap contributors, Open Database License, read Oct 24, 2026. Ratings, answers and photos are members' own; who shared them is never shown, and every photo is reviewed before it appears. Visits older than 18 months no longer count. Distances are straight-line miles, not driving. Nothing here grants access to private land. Community guidelines.
Blue RibbonThe Salt River in Star Valley, Wyoming. Photo: Clyde Charles Brown, CC BY-SA 4.0, via Wikimedia Commons
Designated trout waterFlat Creek in Jackson, Wyoming. Photo: Hansueli Krapf, CC BY-SA 4.0, via Wikimedia Commons
Wyoming · about 22 mi
Featured sport-fishing waterRepresentative photo · not Palisades ReservoirHenrys Lake from Henrys Lake State Park, Idaho. Photo: James Postema, CC BY 4.0, via Wikimedia Commons Not Palisades Reservoir.
Designated trout waterRepresentative photo · not Greys RiverThe upper Hoback River valley at Bondurant, Wyoming, in autumn (the river itself is out of frame). Photo: Tony Webster, CC BY-SA 2.0, via Flickr Not Greys River.
Red RibbonRepresentative photo · not Fish CreekThe Snake River in Grand Teton National Park. Photo: Miguel Hermoso Cuesta, CC BY-SA 4.0, via Wikimedia Commons Not Fish Creek.
Wyoming · about 20 mi
Freestone riverRepresentative photo · not Salt RiverThe Teton River near Driggs, Idaho. Photo: Waldemarpaetz, CC BY 3.0, via Wikimedia Commons Not Salt River.
Idaho · about 20 mi
Seasons, limits, special regulations and closures for each reach are on the agency pages below. Read them before you go.
Each comes from the agency's own published list; where the list names a reach it is quoted. A designation applies to the listed reach, not necessarily the whole water. Listed in the finder under trout.
On the Special Rule Waters (trout / salmon / gear rules) list (Idaho Department of Fish and Game, read 2026-11-05). All waters with this designation
On the IDFG Recommended Fishing Waters (Idaho Fishing Planner) list (Idaho Department of Fish and Game, read 2026-11-05). All waters with this designation
Quoted word for word from the agency page on the date shown. Many quotes name the reach they cover and apply only to that part of the water. Rules change; the linked page is the authority.
“All Waters Open All Year Except as modified in Special Rules”
Idaho Department of Fish and Game · read 2026-10-14
Areas the Protected Areas Database of the United States (PAD-US), public access (U.S. Geological Survey, Gap Analysis Project, read 2026-11-05) lists as owned or held in easement and open to the public, crossed by the mapped channel. Boundaries are mapped, not surveyed. Nothing on this page grants or implies access: check the agency map, posted signs and landowner permission before you fish.
Nothing on this page grants or implies access.
Listings marked Unclaimed are built from open map records and the business's own website: confirm licensing, rates, dates and hours directly.
3 guides name it on their website
Victor, ID · 19 mi
Float trips · Wade trips · Bighorn & Snake
Names this water
Nampa, ID
Drift boat · Beginners & lessons · Snake & Clearwater
Names this water
The species the agency lists here; presence varies by reach and season.
Listed by the state agency
Species guide
Rainbow trout (Oncorhynchus mykiss), illustration by Duane Raver for the U.S. Fish and Wildlife Service. Photo: Duane Raver, U.S. Fish and Wildlife Service, public domain, via Wikimedia Commons
Species guide
Brown trout (Salmo trutta), U.S. Fish and Wildlife Service illustration. Photo: U.S. Fish and Wildlife Service, public domain, via Wikimedia Commons
Species guide
Cutthroat trout (Oncorhynchus clarkii), photographed by James E. Johnson for the U.S. Fish and Wildlife Service. Photo: James E. Johnson, U.S. Fish and Wildlife Service, public domain, via Wikimedia Commons
5 hatches charted for the region, not measured on this water. From Montana Fish, Wildlife & Parks.
Mother's Day caddis (Grannom) (May) · Salmonfly (May to June) · Salmonfly (May to July) · Salmonfly (July) · Trico (August to September)
Jackson sits in the valley of the upper Snake River below the Tetons, with the Gros Ventre and Hoback rivers joining the Snake nearby and the Salt and Green rivers over the passes.
Destination hub · 25 mi away in a straight line, 55 by road
Matched on the fish the agencies list for both waters first, then the same water type, an official designation or flagship listing on both, and a similar mapped size where USGS hydrography covers both.
At most two waters per country. A shared fish is a listing, not a promise: presence varies by reach and season.
Like the South Fork of the Snake River? Same fish, overseas.
Flagship waterThe Meander River in Deloraine, Tasmania. Photo: Gary Houston, CC0, via Wikimedia Commons
Flagship waterThe Tekapo–Pukaki hydro canal, Mackenzie Country, Canterbury. Photo: Avenue, CC BY-SA 3.0, via Wikimedia Commons
TailwaterThe Grand River just north of Paris, Ontario, looking upstream. Photo: JustSomePics, CC BY-SA 3.0, via Wikimedia Commons
TailwaterThe lower Clutha River / Mata-Au and Inch Clutha from Kaitangata. Photo: Andrewrutherford, CC BY-SA 4.0, via Wikimedia Commons
TailwaterRepresentative photo · not Río CalcurrupeThe Río Toltén at Pocoyán. Photo: Maxbalter, CC BY-SA 3.0, via Wikimedia Commons Not Río Calcurrupe.
TailwaterRepresentative photo · not Brumbys CreekThe South Esk River, Tasmania. Photo: Michael Coghlan from Adelaide, Australia, CC BY-SA 2.0, via Wikimedia Commons Not Brumbys Creek.
Southern seasons open while ours close.
Flagship waterPenstock Lagoon, Central Highlands, Tasmania. Photo: Mike Cline, CC BY-SA 4.0, via Wikimedia Commons
Freestone riverRepresentative photo · not Río PetrohuéThe Río Puelo at Las Gualas, Cochamó. Photo: Nicolás from seno de reloncaví, Chile, CC BY-SA 2.0, via Wikimedia Commons Not Río Petrohué.
Lake or reservoirRepresentative photo · not Lago LlanquihueThe Río Simpson passing Coyhaique, Aysén. Photo: Manxuc, CC BY-SA 4.0, via Wikimedia Commons Not Lago Llanquihue.
Lake or reservoir
Flagship waterRepresentative photo · not Mataura RiverThe Oreti River near Lumsden, Southland. Photo: Krzysztof Golik, CC BY-SA 4.0, cropped, via Wikimedia Commons Not Mataura River.
Flagship waterGreat Lake, Tasmania. Photo: Peripitus, CC BY-SA 3.0, via Wikimedia Commons
What to bring on a guided float fishing trip: rain gear, polarized sunglasses, sun protection, a dry bag and your license. Most guides supply rods and flies. Estimated prices and where to buy.
Usually supplied by the guide; a 9′ 5–6 weight if you bring your own · Trout on most western float rivers
Open the checklistSeams, shelves and soft water, shown on real rivers.
Public YouTube videos from established channels, chosen by us to support this page. Not sponsored; the creators are not affiliated with Legendary Fly Gear.
Not sponsored All videos on reading water
Indicator rigs, depth and detecting the take.
Public YouTube videos from established channels, chosen by us to support this page. Not sponsored; the creators are not affiliated with Legendary Fly Gear.
Not sponsored All videos on nymphing
Trip stories anglers chose to share publicly and tagged with South Fork of the Snake River.
No stories from here yet.
Not a statement of access, fish presence or conditions.
A water page organises discovery. It does not assert public access, legal access, current fish presence, guide availability or fishing conditions.
Flows, gauge statistics and flood stages come from USGS and the National Weather Service when the page is shown. Regulations, stocking, species and season statements link to the agency that publishes them; this page copies only the species names and the quoted sentences. Guide and shop listings come from the Legendary directories. Position: the USGS gauge SNAKE RIVER NR IRWIN ID. Water type is our own classification.
Limited data: Normal flow for the date: no water temperature here
No water temperature here.
At SNAKE RIVER NR IRWIN ID (USGS 13032500) · 1 of 2 gauges below Provisional USGS data
USGS 13032500 · NWS PALI1
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 4:30 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 5:30 PM MDT to Nov 5, 4:30 PM MST; ranging 874 to 1,490 ft³/s; latest 938 ft³/s.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) |
|---|---|---|
| Nov 5, 4:30 PM MST | 938 | 4.46 |
| Nov 5, 3:30 PM MST | 925 | 4.45 |
| Nov 5, 2:30 PM MST | 938 | 4.46 |
| Nov 5, 1:30 PM MST | 925 | 4.45 |
| Nov 5, 12:30 PM MST | 938 | 4.46 |
| Nov 5, 11:30 AM MST | 938 | 4.46 |
| Nov 5, 10:30 AM MST | 938 | 4.46 |
| Nov 5, 9:30 AM MST | 912 | 4.44 |
| Nov 5, 8:30 AM MST | 912 | 4.44 |
| Nov 5, 7:30 AM MST | 951 | 4.47 |
| Nov 5, 6:30 AM MST | 925 | 4.45 |
| Nov 5, 5:30 AM MST | 925 | 4.45 |
| Nov 5, 4:30 AM MST | 925 | 4.45 |
| Nov 5, 3:30 AM MST | 925 | 4.45 |
| Nov 5, 2:30 AM MST | 925 | 4.45 |
| Nov 5, 1:30 AM MST | 925 | 4.45 |
| Nov 5, 12:30 AM MST | 925 | 4.45 |
| Nov 4, 11:30 PM MST | 925 | 4.45 |
| Nov 4, 10:30 PM MST | 925 | 4.45 |
| Nov 4, 9:30 PM MST | 912 | 4.44 |
| Nov 4, 8:30 PM MST | 912 | 4.44 |
| Nov 4, 7:30 PM MST | 925 | 4.45 |
| Nov 4, 6:30 PM MST | 925 | 4.45 |
| Nov 4, 5:30 PM MST | 938 | 4.46 |
| Nov 4, 4:30 PM MST | 925 | 4.45 |
| Nov 4, 3:30 PM MST | 925 | 4.45 |
| Nov 4, 2:30 PM MST | 925 | 4.45 |
| Nov 4, 1:30 PM MST | 925 | 4.45 |
| Nov 4, 12:30 PM MST | 912 | 4.44 |
| Nov 4, 11:30 AM MST | 912 | 4.44 |
| Nov 4, 10:30 AM MST | 912 | 4.44 |
| Nov 4, 9:30 AM MST | 900 | 4.43 |
| Nov 4, 8:30 AM MST | 912 | 4.44 |
| Nov 4, 7:30 AM MST | 925 | 4.45 |
| Nov 4, 6:30 AM MST | 912 | 4.44 |
| Nov 4, 5:30 AM MST | 925 | 4.45 |
| Nov 4, 4:30 AM MST | 925 | 4.45 |
| Nov 4, 3:30 AM MST | 912 | 4.44 |
| Nov 4, 2:30 AM MST | 925 | 4.45 |
| Nov 4, 1:30 AM MST | 900 | 4.43 |
| Nov 4, 12:30 AM MST | 912 | 4.44 |
| Nov 3, 11:30 PM MST | 925 | 4.45 |
| Nov 3, 10:30 PM MST | 912 | 4.44 |
| Nov 3, 9:30 PM MST | 925 | 4.45 |
| Nov 3, 8:30 PM MST | 925 | 4.45 |
| Nov 3, 7:30 PM MST | 925 | 4.45 |
| Nov 3, 6:30 PM MST | 925 | 4.45 |
| Nov 3, 5:30 PM MST | 938 | 4.46 |
| Nov 3, 4:30 PM MST | 938 | 4.46 |
| Nov 3, 3:30 PM MST | 925 | 4.45 |
| Nov 3, 2:30 PM MST | 912 | 4.44 |
| Nov 3, 1:30 PM MST | 900 | 4.43 |
| Nov 3, 12:30 PM MST | 912 | 4.44 |
| Nov 3, 11:30 AM MST | 900 | 4.43 |
| Nov 3, 10:30 AM MST | 925 | 4.45 |
| Nov 3, 9:30 AM MST | 912 | 4.44 |
| Nov 3, 8:30 AM MST | 900 | 4.43 |
| Nov 3, 7:30 AM MST | 912 | 4.44 |
| Nov 3, 6:30 AM MST | 912 | 4.44 |
| Nov 3, 5:30 AM MST | 900 | 4.43 |
| Nov 3, 4:30 AM MST | 912 | 4.44 |
| Nov 3, 3:30 AM MST | 912 | 4.44 |
| Nov 3, 2:30 AM MST | 900 | 4.43 |
| Nov 3, 1:30 AM MST | 912 | 4.44 |
| Nov 3, 12:30 AM MST | 912 | 4.44 |
| Nov 2, 11:30 PM MST | 912 | 4.44 |
| Nov 2, 10:30 PM MST | 912 | 4.44 |
| Nov 2, 9:30 PM MST | 912 | 4.44 |
| Nov 2, 8:30 PM MST | 925 | 4.45 |
| Nov 2, 7:30 PM MST | 912 | 4.44 |
| Nov 2, 6:30 PM MST | 912 | 4.44 |
| Nov 2, 5:30 PM MST | 925 | 4.45 |
| Nov 2, 4:30 PM MST | 900 | 4.43 |
| Nov 2, 3:30 PM MST | 900 | 4.43 |
| Nov 2, 2:30 PM MST | 912 | 4.44 |
| Nov 2, 1:30 PM MST | 874 | 4.41 |
| Nov 2, 12:30 PM MST | 1,180 | 4.64 |
| Nov 2, 11:30 AM MST | 1,480 | 4.84 |
| Nov 2, 10:30 AM MST | 1,450 | 4.82 |
| Nov 2, 9:30 AM MST | 1,430 | 4.81 |
| Nov 2, 8:30 AM MST | 1,430 | 4.81 |
| Nov 2, 7:30 AM MST | 1,480 | 4.84 |
| Nov 2, 6:30 AM MST | 1,460 | 4.83 |
| Nov 2, 5:30 AM MST | 1,450 | 4.82 |
| Nov 2, 4:30 AM MST | 1,460 | 4.83 |
| Nov 2, 3:30 AM MST | 1,430 | 4.81 |
| Nov 2, 2:30 AM MST | 1,450 | 4.82 |
| Nov 2, 1:30 AM MST | 1,420 | 4.8 |
| Nov 2, 12:30 AM MST | 1,430 | 4.81 |
| Nov 1, 11:30 PM MST | 1,450 | 4.82 |
| Nov 1, 10:30 PM MST | 1,430 | 4.81 |
| Nov 1, 9:30 PM MST | 1,430 | 4.81 |
| Nov 1, 8:30 PM MST | 1,430 | 4.81 |
| Nov 1, 7:30 PM MST | 1,450 | 4.82 |
| Nov 1, 6:30 PM MST | 1,480 | 4.84 |
| Nov 1, 5:30 PM MST | 1,460 | 4.83 |
| Nov 1, 4:30 PM MST | 1,450 | 4.82 |
| Nov 1, 3:30 PM MST | 1,460 | 4.83 |
| Nov 1, 2:30 PM MST | 1,430 | 4.81 |
| Nov 1, 1:30 PM MST | 1,450 | 4.82 |
| Nov 1, 12:30 PM MST | 1,450 | 4.82 |
| Nov 1, 11:30 AM MST | 1,460 | 4.83 |
| Nov 1, 10:30 AM MST | 1,450 | 4.82 |
| Nov 1, 9:30 AM MST | 1,420 | 4.8 |
| Nov 1, 8:30 AM MST | 1,460 | 4.83 |
| Nov 1, 7:30 AM MST | 1,460 | 4.83 |
| Nov 1, 6:30 AM MST | 1,450 | 4.82 |
| Nov 1, 5:30 AM MST | 1,430 | 4.81 |
| Nov 1, 4:30 AM MST | 1,450 | 4.82 |
| Nov 1, 3:30 AM MST | 1,430 | 4.81 |
| Nov 1, 2:30 AM MST | 1,430 | 4.81 |
| Nov 1, 1:30 AM MST | 1,430 | 4.81 |
| Nov 1, 1:30 AM MDT | 1,430 | 4.81 |
| Nov 1, 12:30 AM MDT | 1,450 | 4.82 |
| Oct 31, 11:30 PM MDT | 1,430 | 4.81 |
| Oct 31, 10:30 PM MDT | 1,430 | 4.81 |
| Oct 31, 9:30 PM MDT | 1,430 | 4.81 |
| Oct 31, 8:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 7:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 6:30 PM MDT | 1,420 | 4.8 |
| Oct 31, 5:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 4:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 3:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 2:30 PM MDT | 1,420 | 4.8 |
| Oct 31, 1:30 PM MDT | 1,400 | 4.79 |
| Oct 31, 12:30 PM MDT | 1,450 | 4.82 |
| Oct 31, 11:30 AM MDT | 1,490 | 4.85 |
| Oct 31, 10:30 AM MDT | 1,430 | 4.81 |
| Oct 31, 9:30 AM MDT | 1,450 | 4.82 |
| Oct 31, 8:30 AM MDT | 1,460 | 4.83 |
| Oct 31, 7:30 AM MDT | 1,460 | 4.83 |
| Oct 31, 6:30 AM MDT | 1,460 | 4.83 |
| Oct 31, 5:30 AM MDT | 1,450 | 4.82 |
| Oct 31, 4:30 AM MDT | 1,450 | 4.82 |
| Oct 31, 3:30 AM MDT | 1,430 | 4.81 |
| Oct 31, 2:30 AM MDT | 1,430 | 4.81 |
| Oct 31, 1:30 AM MDT | 1,450 | 4.82 |
| Oct 31, 12:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 11:30 PM MDT | 1,450 | 4.82 |
| Oct 30, 10:30 PM MDT | 1,420 | 4.8 |
| Oct 30, 9:30 PM MDT | 1,450 | 4.82 |
| Oct 30, 8:30 PM MDT | 1,420 | 4.8 |
| Oct 30, 7:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 6:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 5:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 4:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 3:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 2:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 1:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 12:30 PM MDT | 1,430 | 4.81 |
| Oct 30, 11:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 10:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 9:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 8:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 7:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 6:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 5:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 4:30 AM MDT | 1,450 | 4.82 |
| Oct 30, 3:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 2:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 1:30 AM MDT | 1,430 | 4.81 |
| Oct 30, 12:30 AM MDT | 1,430 | 4.81 |
| Oct 29, 11:30 PM MDT | 1,430 | 4.81 |
| Oct 29, 10:30 PM MDT | 1,430 | 4.81 |
| Oct 29, 9:30 PM MDT | 1,430 | 4.81 |
| Oct 29, 8:30 PM MDT | 1,450 | 4.82 |
| Oct 29, 7:30 PM MDT | 1,450 | 4.82 |
| Oct 29, 6:30 PM MDT | 1,450 | 4.82 |
| Oct 29, 5:30 PM MDT | 1,460 | 4.83 |
Normal for Nov 5: 1,060–2,570 ft³/s (middle half of 79 years of record). Now: 938 ft³/s, below normal.
Below normal for this date. 938 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 79 years of record (1940–2026): 10th 895, 25th 1,060, median 1,770, 75th 2,570, 90th 3,370 ft³/s.
Daily means on record for Nov 5: lowest 71 ft³/s, highest 4,900 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+1.4% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 4.46 ft stage, 938 ft³/s at Nov 5, 4:30 PM MST (NWS gauge PALI1; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 8:22 AM MST. Highest point: 4.47 ft, 951 ft³/s on Nov 15, 5:00 AM MST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 4.44 ft | 912 ft³/s |
| Fri, Nov 6 | 4.44 ft | 912 ft³/s |
| Sat, Nov 7 | 4.44 ft | 912 ft³/s |
| Sun, Nov 8 | 4.44 ft | 912 ft³/s |
| Mon, Nov 9 | 4.44 ft | 912 ft³/s |
| Tue, Nov 10 | 4.44 ft | 912 ft³/s |
| Wed, Nov 11 | 4.44 ft | 912 ft³/s |
| Thu, Nov 12 | 4.45 ft | 925 ft³/s |
| Fri, Nov 13 | 4.46 ft | 938 ft³/s |
| Sat, Nov 14 | 4.46 ft | 938 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Idaho Fish and Game uses are 66°F and 73°F.
Species the agency lists for South Fork of the Snake River: Brown Trout, Cutthroat Trout, Mountain Whitefish, Rainbow Trout, Cutbow - Cutthroat x Rainbow Trout.
Source: South Fork Snake River (Snake River) | Idaho Fishing Planner (Idaho Department of Fish and Game).
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
USGS 13037500 · NWS HEII1
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 4:30 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 5:30 PM MDT to Nov 5, 4:30 PM MST; ranging 1,560 to 2,140 ft³/s; latest 1,560 ft³/s.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) |
|---|---|---|
| Nov 5, 4:30 PM MST | 1,560 | 1.76 |
| Nov 5, 3:30 PM MST | 1,560 | 1.76 |
| Nov 5, 2:30 PM MST | 1,580 | 1.77 |
| Nov 5, 1:30 PM MST | 1,560 | 1.76 |
| Nov 5, 12:30 PM MST | 1,560 | 1.76 |
| Nov 5, 11:30 AM MST | 1,560 | 1.76 |
| Nov 5, 10:30 AM MST | 1,560 | 1.76 |
| Nov 5, 9:30 AM MST | 1,580 | 1.77 |
| Nov 5, 8:30 AM MST | 1,560 | 1.76 |
| Nov 5, 7:30 AM MST | 1,560 | 1.76 |
| Nov 5, 6:30 AM MST | 1,580 | 1.77 |
| Nov 5, 5:30 AM MST | 1,580 | 1.77 |
| Nov 5, 4:30 AM MST | 1,580 | 1.77 |
| Nov 5, 3:30 AM MST | 1,580 | 1.77 |
| Nov 5, 2:30 AM MST | 1,560 | 1.76 |
| Nov 5, 1:30 AM MST | 1,560 | 1.76 |
| Nov 5, 12:30 AM MST | 1,560 | 1.76 |
| Nov 4, 11:30 PM MST | 1,560 | 1.76 |
| Nov 4, 10:30 PM MST | 1,580 | 1.77 |
| Nov 4, 9:30 PM MST | 1,560 | 1.76 |
| Nov 4, 8:30 PM MST | 1,580 | 1.77 |
| Nov 4, 7:30 PM MST | 1,590 | 1.78 |
| Nov 4, 6:30 PM MST | 1,580 | 1.77 |
| Nov 4, 5:30 PM MST | 1,560 | 1.76 |
| Nov 4, 4:30 PM MST | 1,580 | 1.77 |
| Nov 4, 3:30 PM MST | 1,560 | 1.76 |
| Nov 4, 2:30 PM MST | 1,560 | 1.76 |
| Nov 4, 1:30 PM MST | 1,560 | 1.76 |
| Nov 4, 12:30 PM MST | 1,560 | 1.76 |
| Nov 4, 11:30 AM MST | 1,580 | 1.77 |
| Nov 4, 10:30 AM MST | 1,580 | 1.77 |
| Nov 4, 9:30 AM MST | 1,560 | 1.76 |
| Nov 4, 8:30 AM MST | 1,590 | 1.78 |
| Nov 4, 7:30 AM MST | 1,580 | 1.77 |
| Nov 4, 6:30 AM MST | 1,580 | 1.77 |
| Nov 4, 5:30 AM MST | 1,590 | 1.78 |
| Nov 4, 4:30 AM MST | 1,580 | 1.77 |
| Nov 4, 3:30 AM MST | 1,580 | 1.77 |
| Nov 4, 2:30 AM MST | 1,580 | 1.77 |
| Nov 4, 1:30 AM MST | 1,580 | 1.77 |
| Nov 4, 12:30 AM MST | 1,560 | 1.76 |
| Nov 3, 11:30 PM MST | 1,580 | 1.77 |
| Nov 3, 10:30 PM MST | 1,580 | 1.77 |
| Nov 3, 9:30 PM MST | 1,580 | 1.77 |
| Nov 3, 8:30 PM MST | 1,590 | 1.78 |
| Nov 3, 7:30 PM MST | 1,590 | 1.78 |
| Nov 3, 6:30 PM MST | 1,590 | 1.78 |
| Nov 3, 5:30 PM MST | 1,590 | 1.78 |
| Nov 3, 4:30 PM MST | 1,590 | 1.78 |
| Nov 3, 3:30 PM MST | 1,610 | 1.79 |
| Nov 3, 2:30 PM MST | 1,590 | 1.78 |
| Nov 3, 1:30 PM MST | 1,590 | 1.78 |
| Nov 3, 12:30 PM MST | 1,610 | 1.79 |
| Nov 3, 11:30 AM MST | 1,610 | 1.79 |
| Nov 3, 10:30 AM MST | 1,590 | 1.78 |
| Nov 3, 9:30 AM MST | 1,610 | 1.79 |
| Nov 3, 8:30 AM MST | 1,610 | 1.79 |
| Nov 3, 7:30 AM MST | 1,610 | 1.79 |
| Nov 3, 6:30 AM MST | 1,620 | 1.8 |
| Nov 3, 5:30 AM MST | 1,620 | 1.8 |
| Nov 3, 4:30 AM MST | 1,620 | 1.8 |
| Nov 3, 3:30 AM MST | 1,640 | 1.81 |
| Nov 3, 2:30 AM MST | 1,660 | 1.82 |
| Nov 3, 1:30 AM MST | 1,740 | 1.87 |
| Nov 3, 12:30 AM MST | 1,840 | 1.93 |
| Nov 2, 11:30 PM MST | 1,970 | 2.01 |
| Nov 2, 10:30 PM MST | 2,070 | 2.07 |
| Nov 2, 9:30 PM MST | 2,090 | 2.08 |
| Nov 2, 8:30 PM MST | 2,090 | 2.08 |
| Nov 2, 7:30 PM MST | 2,110 | 2.09 |
| Nov 2, 6:30 PM MST | 2,090 | 2.08 |
| Nov 2, 5:30 PM MST | 2,070 | 2.07 |
| Nov 2, 4:30 PM MST | 2,090 | 2.08 |
| Nov 2, 3:30 PM MST | 2,070 | 2.07 |
| Nov 2, 2:30 PM MST | 2,070 | 2.07 |
| Nov 2, 1:30 PM MST | 2,090 | 2.08 |
| Nov 2, 12:30 PM MST | 2,070 | 2.07 |
| Nov 2, 11:30 AM MST | 2,070 | 2.07 |
| Nov 2, 10:30 AM MST | 2,090 | 2.08 |
| Nov 2, 9:30 AM MST | 2,090 | 2.08 |
| Nov 2, 8:30 AM MST | 2,070 | 2.07 |
| Nov 2, 7:30 AM MST | 2,090 | 2.08 |
| Nov 2, 6:30 AM MST | 2,090 | 2.08 |
| Nov 2, 5:30 AM MST | 2,110 | 2.09 |
| Nov 2, 4:30 AM MST | 2,130 | 2.1 |
| Nov 2, 3:30 AM MST | 2,110 | 2.09 |
| Nov 2, 2:30 AM MST | 2,110 | 2.09 |
| Nov 2, 1:30 AM MST | 2,130 | 2.1 |
| Nov 2, 12:30 AM MST | 2,130 | 2.1 |
| Nov 1, 11:30 PM MST | 2,110 | 2.09 |
| Nov 1, 10:30 PM MST | 2,140 | 2.11 |
| Nov 1, 9:30 PM MST | 2,130 | 2.1 |
| Nov 1, 8:30 PM MST | 2,130 | 2.1 |
| Nov 1, 7:30 PM MST | 2,140 | 2.11 |
| Nov 1, 6:30 PM MST | 2,130 | 2.1 |
| Nov 1, 5:30 PM MST | 2,090 | 2.08 |
| Nov 1, 4:30 PM MST | 2,090 | 2.08 |
| Nov 1, 3:30 PM MST | 2,090 | 2.08 |
| Nov 1, 2:30 PM MST | 2,070 | 2.07 |
| Nov 1, 1:30 PM MST | 2,090 | 2.08 |
| Nov 1, 12:30 PM MST | 2,090 | 2.08 |
| Nov 1, 11:30 AM MST | 2,070 | 2.07 |
| Nov 1, 10:30 AM MST | 2,070 | 2.07 |
| Nov 1, 9:30 AM MST | 2,070 | 2.07 |
| Nov 1, 8:30 AM MST | 2,070 | 2.07 |
| Nov 1, 7:30 AM MST | 2,090 | 2.08 |
| Nov 1, 6:30 AM MST | 2,070 | 2.07 |
| Nov 1, 5:30 AM MST | 2,060 | 2.06 |
| Nov 1, 4:30 AM MST | 2,060 | 2.06 |
| Nov 1, 3:30 AM MST | 2,040 | 2.05 |
| Nov 1, 2:30 AM MST | 2,040 | 2.05 |
| Nov 1, 1:30 AM MST | 2,060 | 2.06 |
| Nov 1, 1:30 AM MDT | 2,040 | 2.05 |
| Nov 1, 12:30 AM MDT | 2,040 | 2.05 |
| Oct 31, 11:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 10:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 9:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 8:30 PM MDT | 2,060 | 2.06 |
| Oct 31, 7:30 PM MDT | 2,060 | 2.06 |
| Oct 31, 6:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 5:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 4:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 3:30 PM MDT | 2,040 | 2.05 |
| Oct 31, 2:30 PM MDT | 2,020 | 2.04 |
| Oct 31, 1:30 PM MDT | 2,020 | 2.04 |
| Oct 31, 12:30 PM MDT | 2,020 | 2.04 |
| Oct 31, 11:30 AM MDT | 2,040 | 2.05 |
| Oct 31, 10:30 AM MDT | 2,020 | 2.04 |
| Oct 31, 9:30 AM MDT | 2,020 | 2.04 |
| Oct 31, 8:30 AM MDT | 2,040 | 2.05 |
| Oct 31, 7:30 AM MDT | 2,020 | 2.04 |
| Oct 31, 6:30 AM MDT | 2,040 | 2.05 |
| Oct 31, 5:30 AM MDT | 2,060 | 2.06 |
| Oct 31, 4:30 AM MDT | 2,060 | 2.06 |
| Oct 31, 3:30 AM MDT | 2,040 | 2.05 |
| Oct 31, 2:30 AM MDT | 2,060 | 2.06 |
| Oct 31, 1:30 AM MDT | 2,020 | 2.04 |
| Oct 31, 12:30 AM MDT | 2,020 | 2.04 |
| Oct 30, 11:30 PM MDT | 2,040 | 2.05 |
| Oct 30, 10:30 PM MDT | 2,040 | 2.05 |
| Oct 30, 9:30 PM MDT | 2,020 | 2.04 |
| Oct 30, 8:30 PM MDT | 2,040 | 2.05 |
| Oct 30, 7:30 PM MDT | 2,020 | 2.04 |
| Oct 30, 6:30 PM MDT | 2,010 | 2.03 |
| Oct 30, 5:30 PM MDT | 2,010 | 2.03 |
| Oct 30, 4:30 PM MDT | 2,010 | 2.03 |
| Oct 30, 3:30 PM MDT | 1,990 | 2.02 |
| Oct 30, 2:30 PM MDT | 2,010 | 2.03 |
| Oct 30, 1:30 PM MDT | 2,010 | 2.03 |
| Oct 30, 12:30 PM MDT | 1,990 | 2.02 |
| Oct 30, 11:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 10:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 9:30 AM MDT | 1,990 | 2.02 |
| Oct 30, 8:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 7:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 6:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 5:30 AM MDT | 2,020 | 2.04 |
| Oct 30, 4:30 AM MDT | 2,020 | 2.04 |
| Oct 30, 3:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 2:30 AM MDT | 2,020 | 2.04 |
| Oct 30, 1:30 AM MDT | 2,010 | 2.03 |
| Oct 30, 12:30 AM MDT | 2,010 | 2.03 |
| Oct 29, 11:30 PM MDT | 2,010 | 2.03 |
| Oct 29, 10:30 PM MDT | 2,010 | 2.03 |
| Oct 29, 9:30 PM MDT | 2,020 | 2.04 |
| Oct 29, 8:30 PM MDT | 2,040 | 2.05 |
| Oct 29, 7:30 PM MDT | 2,040 | 2.05 |
| Oct 29, 6:30 PM MDT | 1,990 | 2.02 |
| Oct 29, 5:30 PM MDT | 2,010 | 2.03 |
Normal for Nov 5: 1,680–3,290 ft³/s (middle half of 116 years of record). Now: 1,560 ft³/s, below normal.
Below normal for this date. 1,560 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 116 years of record (1911–2026): 10th 1,420, 25th 1,680, median 2,740, 75th 3,290, 90th 4,090 ft³/s.
Daily means on record for Nov 5: lowest 567 ft³/s, highest 5,350 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (−1.3% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 1.76 ft stage, 1,560 ft³/s at Nov 5, 4:30 PM MST (NWS gauge HEII1; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 8:22 AM MST. Highest point: 1.77 ft, 1,580 ft³/s on Nov 5, 11:00 AM MST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 1.77 ft | 1,580 ft³/s |
| Fri, Nov 6 | 1.75 ft | 1,550 ft³/s |
| Sat, Nov 7 | 1.73 ft | 1,510 ft³/s |
| Sun, Nov 8 | 1.71 ft | 1,480 ft³/s |
| Mon, Nov 9 | 1.69 ft | 1,450 ft³/s |
| Tue, Nov 10 | 1.67 ft | 1,420 ft³/s |
| Wed, Nov 11 | 1.66 ft | 1,410 ft³/s |
| Thu, Nov 12 | 1.64 ft | 1,380 ft³/s |
| Fri, Nov 13 | 1.63 ft | 1,360 ft³/s |
| Sat, Nov 14 | 1.62 ft | 1,350 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Idaho Fish and Game uses are 66°F and 73°F.
Species the agency lists for South Fork of the Snake River: Brown Trout, Cutthroat Trout, Mountain Whitefish, Rainbow Trout, Cutbow - Cutthroat x Rainbow Trout.
Source: South Fork Snake River (Snake River) | Idaho Fishing Planner (Idaho Department of Fish and Game).
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Checked Nov 5, 5:21 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.
Blue RibbonThe Salt River in Star Valley, Wyoming. Photo: Clyde Charles Brown, CC BY-SA 4.0, via Wikimedia Commons
Wyoming · about 21 mi
Rainbow, brown & cutthroat trout
435cfsFlow now · much below normal for the date
Running well nowFlat Creek in Jackson, Wyoming. Photo: Hansueli Krapf, CC BY-SA 4.0, via Wikimedia Commons
Featured sport-fishing waterRepresentative photo · not Palisades ReservoirHenrys Lake from Henrys Lake State Park, Idaho. Photo: James Postema, CC BY 4.0, via Wikimedia Commons Not Palisades Reservoir.
Running well nowRepresentative photo · not Greys RiverThe upper Hoback River valley at Bondurant, Wyoming, in autumn (the river itself is out of frame). Photo: Tony Webster, CC BY-SA 2.0, via Flickr Not Greys River.
Running well nowRepresentative photo · not Fish CreekThe Snake River in Grand Teton National Park. Photo: Miguel Hermoso Cuesta, CC BY-SA 4.0, via Wikimedia Commons Not Fish Creek.
Freestone riverRepresentative photo · not Salt RiverThe Teton River near Driggs, Idaho. Photo: Waldemarpaetz, CC BY 3.0, via Wikimedia Commons Not Salt River.
Idaho · about 20 mi
Irwin, Idaho
Fishing lodge · 2.1 mi
Irwin, Idaho
Fishing lodge · 3.7 mi
Irwin, Idaho
Fishing lodge · 5.0 mi
Swan Valley, Idaho
Fish camp · 5.9 mi
Swan Valley, Idaho
Guest ranch · 7.5 mi
