The Greys River is a freestone river in Wyoming, listed as Designated trout water by Wyoming Game and Fish Department.
1 USGS gauge on the water reports flow; Wyoming Game and Fish Department lists 1 species. 7 guides nearby are listed here; the nearest destination hub is Jackson Hole.
Greys River is a freestone river in Wyoming. Our destination hub Jackson Hole is 26 mi away in a straight line.
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 Greys River: gauges, shops and guides
Map of Greys River with 1 USGS gauge, and shops and guides with an exact address within 40 miles.
Restrooms within 2 miles of Greys 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 the restroom near Greys River
Skip the map; every place is in the list belowMap of 1 restroom near Greys 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
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 waterThe 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
Wyoming · about 19 mi
Special-regulation trout waterThe South Fork of the Snake River, Idaho (BLM). Photo: Bob Wick / Bureau of Land Management, public domain, via Wikimedia Commons
Designated trout waterFlat Creek in Jackson, Wyoming. Photo: Hansueli Krapf, CC BY-SA 4.0, via Wikimedia Commons
Wyoming · about 24 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 4 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.
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 Yellow streams (WGFD stream classification: Yellow, 50-299 lbs trout/mile) list (Wyoming Game and Fish Department, read 2026-11-05). All waters with this designation
Measured from the NHDPlus High Resolution (flowlines and waterbodies) (U.S. Geological Survey, read 2026-11-04) for this water’s own mapped feature. Rounded figures; they describe the channel, not today’s conditions.
Listings marked Unclaimed are built from open map records and the business's own website: confirm licensing, rates, dates and hours directly.
Jackson, WY · 24 mi
Float trips · Wade trips · Firehole & Snake
Nearby
Jackson, WY · 24 mi
Wade trips · Walk-and-wade · Snake River
Nearby
Wilson, WY · 26 mi
Float trips · Wade trips · Snake & Bighorn
Nearby
Teton Village, WY · 32 mi
Float trips · Drift boat · Snake & Green
Nearby
No shop nearby yet.
The species the agency lists here; presence varies by reach and season.
Listed by the state agency
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 · 26 mi away in a straight line
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 Greys 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 GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY. Water type is our own classification.
Good: Normal flow: fish normally
No water temperature here.
At GREYS RIVER ABOVE RESERVOIR, NEAR ALPINE, WY (USGS 13023000) Provisional USGS data
USGS 13023000 · NWS GREW4
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 3:30 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 164 readings from Oct 29, 4:30 PM MDT to Nov 5, 3:30 PM MST; ranging 233 to 259 ft³/s; latest 237 ft³/s; 1 gap in the record.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) |
|---|---|---|
| Nov 5, 3:30 PM MST | 237 | 1.34 |
| Nov 5, 2:30 PM MST | 241 | 1.35 |
| Nov 5, 1:30 PM MST | 237 | 1.34 |
| Nov 5, 12:30 PM MST | 241 | 1.35 |
| Nov 5, 11:30 AM MST | 237 | 1.34 |
| Nov 5, 10:30 AM MST | 237 | 1.34 |
| Nov 5, 8:30 AM MST | 233 | 1.33 |
| Nov 5, 7:30 AM MST | 241 | 1.35 |
| Nov 5, 6:30 AM MST | 233 | 1.33 |
| Nov 5, 5:30 AM MST | 241 | 1.35 |
| Nov 5, 4:30 AM MST | 241 | 1.35 |
| Nov 5, 3:30 AM MST | 237 | 1.34 |
| Nov 5, 2:30 AM MST | 237 | 1.34 |
| Nov 5, 1:30 AM MST | 241 | 1.35 |
| Nov 5, 12:30 AM MST | 241 | 1.35 |
| Nov 4, 11:30 PM MST | 241 | 1.35 |
| Nov 4, 10:30 PM MST | 241 | 1.35 |
| Nov 4, 9:30 PM MST | 241 | 1.35 |
| Nov 4, 8:30 PM MST | 241 | 1.35 |
| Nov 4, 7:30 PM MST | 241 | 1.35 |
| Nov 4, 6:30 PM MST | 237 | 1.34 |
| Nov 4, 5:30 PM MST | 241 | 1.35 |
| Nov 4, 4:30 PM MST | 237 | 1.34 |
| Nov 4, 3:30 PM MST | 246 | 1.36 |
| Nov 4, 2:30 PM MST | 237 | 1.34 |
| Nov 4, 1:30 PM MST | 241 | 1.35 |
| Nov 4, 12:30 PM MST | 246 | 1.36 |
| Nov 4, 11:30 AM MST | 237 | 1.34 |
| Nov 4, 10:30 AM MST | 241 | 1.35 |
| Nov 4, 9:30 AM MST | 241 | 1.35 |
| Nov 4, 8:30 AM MST | 241 | 1.35 |
| Nov 4, 7:30 AM MST | 246 | 1.36 |
| Nov 4, 6:30 AM MST | 241 | 1.35 |
| Nov 4, 5:30 AM MST | 241 | 1.35 |
| Nov 4, 4:30 AM MST | 246 | 1.36 |
| Nov 4, 3:30 AM MST | 237 | 1.34 |
| Nov 4, 2:30 AM MST | 241 | 1.35 |
| Nov 4, 1:30 AM MST | 241 | 1.35 |
| Nov 4, 12:30 AM MST | 246 | 1.36 |
| Nov 3, 11:30 PM MST | 241 | 1.35 |
| Nov 3, 10:30 PM MST | 241 | 1.35 |
| Nov 3, 9:30 PM MST | 241 | 1.35 |
| Nov 3, 8:30 PM MST | 246 | 1.36 |
| Nov 3, 7:30 PM MST | 246 | 1.36 |
| Nov 3, 6:30 PM MST | 241 | 1.35 |
| Nov 3, 5:30 PM MST | 246 | 1.36 |
| Nov 3, 4:30 PM MST | 246 | 1.36 |
| Nov 3, 3:30 PM MST | 237 | 1.34 |
| Nov 3, 2:30 PM MST | 246 | 1.36 |
| Nov 3, 1:30 PM MST | 250 | 1.37 |
| Nov 3, 12:30 PM MST | 250 | 1.37 |
| Nov 3, 11:30 AM MST | 246 | 1.36 |
| Nov 3, 10:30 AM MST | 246 | 1.36 |
| Nov 3, 9:30 AM MST | 246 | 1.36 |
| Nov 3, 8:30 AM MST | 246 | 1.36 |
| Nov 3, 7:30 AM MST | 250 | 1.37 |
| Nov 3, 6:30 AM MST | 250 | 1.37 |
| Nov 3, 5:30 AM MST | 250 | 1.37 |
| Nov 3, 4:30 AM MST | 250 | 1.37 |
| Nov 3, 3:30 AM MST | 255 | 1.38 |
| Nov 3, 2:30 AM MST | 255 | 1.38 |
| Nov 3, 1:30 AM MST | 255 | 1.38 |
| Nov 3, 12:30 AM MST | 250 | 1.37 |
| Nov 2, 11:30 PM MST | 250 | 1.37 |
| Nov 2, 10:30 PM MST | 255 | 1.38 |
| Nov 2, 9:30 PM MST | 259 | 1.39 |
| Nov 2, 8:30 PM MST | 259 | 1.39 |
| Nov 2, 7:30 PM MST | 250 | 1.37 |
| Nov 2, 6:30 PM MST | 259 | 1.39 |
| Nov 2, 5:30 PM MST | 255 | 1.38 |
| Nov 2, 4:30 PM MST | 255 | 1.38 |
| Nov 2, 3:30 PM MST | 259 | 1.39 |
| Nov 2, 2:30 PM MST | 255 | 1.38 |
| Nov 2, 1:30 PM MST | 255 | 1.38 |
| Nov 2, 12:30 PM MST | 255 | 1.38 |
| Nov 2, 11:30 AM MST | 255 | 1.38 |
| Nov 2, 10:30 AM MST | 255 | 1.38 |
| Nov 2, 9:30 AM MST | 255 | 1.38 |
| Nov 2, 8:30 AM MST | 259 | 1.39 |
| Nov 2, 7:30 AM MST | 255 | 1.38 |
| Nov 2, 6:30 AM MST | 255 | 1.38 |
| Nov 2, 5:30 AM MST | 259 | 1.39 |
| Nov 2, 4:30 AM MST | 259 | 1.39 |
| Nov 2, 3:30 AM MST | 255 | 1.38 |
| Nov 2, 2:30 AM MST | 259 | 1.39 |
| Nov 2, 1:30 AM MST | 246 | 1.36 |
| Nov 2, 12:30 AM MST | 259 | 1.39 |
| Nov 1, 11:30 PM MST | 259 | 1.39 |
| Nov 1, 10:30 PM MST | 259 | 1.39 |
| Nov 1, 9:30 PM MST | 255 | 1.38 |
| Nov 1, 8:30 PM MST | 255 | 1.38 |
| Nov 1, 7:30 PM MST | 255 | 1.38 |
| Nov 1, 6:30 PM MST | 255 | 1.38 |
| Nov 1, 5:30 PM MST | 259 | 1.39 |
| Nov 1, 4:30 PM MST | 250 | 1.37 |
| Nov 1, 3:30 PM MST | 250 | 1.37 |
| Nov 1, 2:30 PM MST | 255 | 1.38 |
| Nov 1, 1:30 PM MST | 259 | 1.39 |
| Nov 1, 12:30 PM MST | 255 | 1.38 |
| Nov 1, 11:30 AM MST | 255 | 1.38 |
| Nov 1, 10:30 AM MST | 255 | 1.38 |
| Nov 1, 9:30 AM MST | 255 | 1.38 |
| Nov 1, 8:30 AM MST | 255 | 1.38 |
| Nov 1, 7:30 AM MST | 246 | 1.36 |
| Nov 1, 6:30 AM MST | 250 | 1.37 |
| Nov 1, 5:30 AM MST | 246 | 1.36 |
| Nov 1, 4:30 AM MST | 255 | 1.38 |
| Nov 1, 3:30 AM MST | 246 | 1.36 |
| Nov 1, 2:30 AM MST | 250 | 1.37 |
| Nov 1, 1:30 AM MST | 250 | 1.37 |
| Nov 1, 1:30 AM MDT | 255 | 1.38 |
| Nov 1, 12:30 AM MDT | 250 | 1.37 |
| Oct 31, 11:30 PM MDT | 255 | 1.38 |
| Oct 31, 10:30 PM MDT | 246 | 1.36 |
| Oct 31, 9:30 PM MDT | 255 | 1.38 |
| Oct 31, 8:30 PM MDT | 255 | 1.38 |
| Oct 31, 7:30 PM MDT | 255 | 1.38 |
| Oct 31, 6:30 PM MDT | 255 | 1.38 |
| Oct 31, 5:30 PM MDT | 255 | 1.38 |
| Oct 31, 4:30 PM MDT | 250 | 1.37 |
| Oct 31, 3:30 PM MDT | 250 | 1.37 |
| Oct 31, 2:30 PM MDT | 246 | 1.36 |
| Oct 31, 1:30 PM MDT | 250 | 1.37 |
| Oct 31, 12:30 PM MDT | 250 | 1.37 |
| Oct 31, 11:30 AM MDT | 250 | 1.37 |
| Oct 31, 10:30 AM MDT | 237 | 1.34 |
| Oct 31, 9:30 AM MDT | 241 | 1.35 |
| Oct 31, 8:30 AM MDT | 246 | 1.36 |
| Oct 31, 7:30 AM MDT | 246 | 1.36 |
| Oct 31, 6:30 AM MDT | 246 | 1.36 |
| Oct 31, 1:30 AM MDT | 246 | 1.36 |
| Oct 31, 12:30 AM MDT | 246 | 1.36 |
| Oct 30, 11:30 PM MDT | 246 | 1.36 |
| Oct 30, 10:30 PM MDT | 241 | 1.35 |
| Oct 30, 9:30 PM MDT | 241 | 1.35 |
| Oct 30, 8:30 PM MDT | 237 | 1.34 |
| Oct 30, 7:30 PM MDT | 255 | 1.38 |
| Oct 30, 6:30 PM MDT | 255 | 1.38 |
| Oct 30, 5:30 PM MDT | 250 | 1.37 |
| Oct 30, 4:30 PM MDT | 255 | 1.38 |
| Oct 30, 3:30 PM MDT | 255 | 1.38 |
| Oct 30, 2:30 PM MDT | 255 | 1.38 |
| Oct 30, 1:30 PM MDT | 250 | 1.37 |
| Oct 30, 12:30 PM MDT | 255 | 1.38 |
| Oct 30, 11:30 AM MDT | 250 | 1.37 |
| Oct 30, 10:30 AM MDT | 255 | 1.38 |
| Oct 30, 9:30 AM MDT | 250 | 1.37 |
| Oct 30, 8:30 AM MDT | 250 | 1.37 |
| Oct 30, 7:30 AM MDT | 246 | 1.36 |
| Oct 30, 6:30 AM MDT | 250 | 1.37 |
| Oct 30, 5:30 AM MDT | 250 | 1.37 |
| Oct 30, 4:30 AM MDT | 259 | 1.39 |
| Oct 30, 3:30 AM MDT | 246 | 1.36 |
| Oct 30, 2:30 AM MDT | 255 | 1.38 |
| Oct 30, 1:30 AM MDT | 250 | 1.37 |
| Oct 30, 12:30 AM MDT | 255 | 1.38 |
| Oct 29, 11:30 PM MDT | 250 | 1.37 |
| Oct 29, 10:30 PM MDT | 246 | 1.36 |
| Oct 29, 9:30 PM MDT | 246 | 1.36 |
| Oct 29, 8:30 PM MDT | 255 | 1.38 |
| Oct 29, 7:30 PM MDT | 250 | 1.37 |
| Oct 29, 6:30 PM MDT | 259 | 1.39 |
| Oct 29, 5:30 PM MDT | 250 | 1.37 |
| Oct 29, 4:30 PM MDT | 255 | 1.38 |
Normal for Nov 5: 243–325 ft³/s (middle half of 75 years of record). Now: 237 ft³/s, below normal.
Below normal for this date. 237 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 75 years of record (1938–2026): 10th 209, 25th 243, median 280, 75th 325, 90th 377 ft³/s.
Daily means on record for Nov 5: lowest 150 ft³/s, highest 472 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 (−3.7% 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.
NWS observed 1.34 ft stage, 255 ft³/s at Nov 5, 3:30 PM MST (NWS gauge GREW4; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
NWS river forecast forecast issued Nov 5, 8:14 AM MST. Highest point: 1.34 ft, 255 ft³/s on Nov 5, 11:00 AM MST.
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 1.34 ft | 255 ft³/s |
| Fri, Nov 6 | 1.31 ft | 242 ft³/s |
| Sat, Nov 7 | 1.31 ft | 242 ft³/s |
| Sun, Nov 8 | 1.31 ft | 242 ft³/s |
| Mon, Nov 9 | 1.31 ft | 242 ft³/s |
| Tue, Nov 10 | 1.31 ft | 242 ft³/s |
| Wed, Nov 11 | 1.3 ft | 237 ft³/s |
| Thu, Nov 12 | 1.3 ft | 237 ft³/s |
| Fri, Nov 13 | 1.3 ft | 237 ft³/s |
| Sat, Nov 14 | 1.29 ft | 233 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 Wyoming Game and Fish uses are 65°F, 68°F and 70°F.
Species the agency lists for Greys River: Snake River Cutthroat.
Source: Yellow streams (WGFD stream classification: Yellow, 50-299 lbs trout/mile) (Wyoming Game and Fish Department).
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, 4:19 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 5 mi
Rainbow, brown & cutthroat trout
429cfsFlow now · much below normal for the date
Running well nowThe 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
Special-regulation trout waterThe South Fork of the Snake River, Idaho (BLM). Photo: Bob Wick / Bureau of Land Management, public domain, via Wikimedia Commons
Idaho · about 19 mi
Rainbow, brown & cutthroat trout
925cfsFlow now · below normal for the date
Running well nowFlat Creek in Jackson, Wyoming. Photo: Hansueli Krapf, CC BY-SA 4.0, via Wikimedia Commons
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 4 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.
Alpine, Wyoming
Guest ranch · 3.5 mi
