Freestone · Volcanic Sedimentary · Utah, US

East Fork Sevier River — Kingston Canyon

East Fork Sevier River — Kingston Canyon terrain map
Today · Not the day for it
Pheasant Tail
Forecast · Today
Not the day for it
Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
45% projected
Today's fly
Pheasant Tail
Pheasant Tail
Conditions on the water · Today
Estimate
Level
Dry recently
No gauge reading
Water temp12.1°C
ClarityUnfishable
Weather16°C
WindN 7 km/h
Pressure1017 hPa
Rain · recent0.9 mm
Rain · ahead0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Brown Trout
Ideal
12°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Likely species
Mayflies
Caddisflies
Hatch timeline · todayPeak at 12pm

12pm(now) — Mahogany Dun

Stage: On emergersApproach: Emerger or dryActivity: 75%
Also:Reed Smut26%
Peak emergence windowDegree-days at peak5 food groups active

Peak activity at 12pm — Mahogany Dun (Mahogany Dun, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Brown DunHatch
2
3
3
3
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Brown Trout fly box
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Verify UDWR current rules and public-access boundaries
  • Do not imply continuous public wading access through private land; surface verified access parcels only.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Beaver River
41 km
Brown trout · Rainbow trout
Fish Lake
51 km
Rainbow trout · Brown trout · Brook trout
Fremont River
53 km
Brown trout · Rainbow trout
Boulder Mountain Lakes
54 km
Brook trout · Cutthroat trout · Rainbow trout
Water quality · US Clean Water Act
  • Aquatic life: Impaired
What this classification means

EPA ATTAINS assessment unit 'East Fork Sevier River-4' (UT16030002-005_00), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Temperature, Nutrients. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · UT16030002-005_00

The full read · show the working · for Brown Trout · confidence 90%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity55 × 12%6.6
Conditions total= 80
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Booking & contacts