Freestone · Quartzite Granite · Utah

Uinta south-slope streams cluster

Uinta south-slope streams cluster terrain map

The south slope of the High Uintas is the Utah expansion that will make a Californian angler stop comparing everything to the Sierra.

Good · Brown Trout
Chubby Chernobyl · 6-10
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp12.2°C
  • ClarityClear
Today's fly
Chubby Chernobyl
Chubby Chernobyl6-10
High-confidence seasonal pick
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp12.2°C
ClarityClear
Weather12°C
WindN 7 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead0.7 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
Good — water temperature is working for you, but time of day is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Through the year
0–3 scale · July 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
SalmonflyHatch
2
3
2
Golden StoneHatch
2
3
2
SkwalaHatch
2
3
2
Yellow SallyHatch
1
2
1

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Cluster overview
  • Verify each stream's access, guide-permit context, and cutthroat-specific rules before surfacing individual reaches
  • Handle native cutthroat conservatively.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Duchesne River
29 km
Brown trout · Rainbow trout · Cutthroat trout
About this water

The south slope of the High Uintas is the Utah expansion that will make a Californian angler stop comparing everything to the Sierra. Lake Fork, Rock Creek, Yellowstone, Whiterocks and the Uinta River drain cold, high country into the Uinta Basin, with wild trout, native cutthroat context, pocket water and a fraction of the pressure of the Provo corridor. Treat this as a cluster of options rather than one precise river: the waters are numerous, access varies, and some reaches deserve careful native-fish handling. The appeal is obvious — high-country trout, guideable walk-wade water, and a real sense of being somewhere different.

  • Quartzite granite
Water quality · US Clean Water Act
  • Aquatic life: Impaired
What this classification means

EPA ATTAINS assessment unit 'Uinta River-4' (UT14060003-024_00), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Metals Other Than Mercury. 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) · UT14060003-024_00

The full read · show the working · for Brown Trout · confidence 75%
How the 79 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity47 × 12%5.6
Conditions total= 79
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Euro Nymphingsubsurface methods
Booking & contacts