Freestone · Mixed · Utah, US

Beaver River

A clear mountain river flows past a beaver dam of woven branches, framed by bare cottonwood trees and dry desert hills under a blue sky

The Beaver is southern Utah's overlooked little gem — a snowmelt freestone tumbling down Beaver Canyon out of the Tushar Mountains, the highest range in this corner of the state, east of the town of Beaver on the Highway 153 corridor.

Tomorrow · Not the day for it
Pheasant Tail
Forecast · Tomorrow
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 · Tomorrow
Live gauge
Level
Rising
0.31 m
Lifting fast
Water temp12.8°C
ClarityUnfishable
Weather16°C
WindN 14 km/h
Pressure1015 hPa
Rain · recent10.1 mm
Rain · ahead0.1 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
13°C est.ideal 1016°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 — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Hatch timeline · tomorrowPeak at 12pm

12pm(now) Mahogany Dun

Stage: On emergersApproach: Emerger or dryActivity: 59%
Also:Reed Smut29%
Peak emergence window5 food groups active

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

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

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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.
  • Open all year (statewide default)
  • Verify current UDWR gear/limit rules
  • The fishable trout water is the canyon reach up Hwy 153 out of Beaver; below town the river is dammed and diverted for the valley
  • Spring snowmelt off the Tushars colours and swells it — a seasonal suppressor applies.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Gallery · 2
  1. A clear mountain river flows past a beaver dam of woven branches, framed by bare cottonwood trees and dry desert hills under a blue sky
    The Beaver River winding through sagebrush canyon country in Beaver County, Utah
  2. Terrain map of the venue
    Terrain map
About this water

The Beaver is southern Utah's overlooked little gem — a snowmelt freestone tumbling down Beaver Canyon out of the Tushar Mountains, the highest range in this corner of the state, east of the town of Beaver on the Highway 153 corridor. It's small-water fishing for wild browns and rainbows in a high, cool canyon that feels a long way from anywhere, with the Tushars' eleven- and twelve-thousand-foot peaks closing in overhead. Pocket water, plunge pools, willow-tunnel runs — the kind of creek where a hopper-dropper and a careful approach do most of the work and the fish reward an accurate cast over a long one. Easy access up the canyon road and through the campgrounds. Spring runoff comes off the Tushars hard and colours it for a stretch; once it drops and clears through summer into autumn it's an honest, uncrowded freestone that almost no one outside the area bothers to fish. Below town the river gets dammed and diverted for the valley — the fishing is up the canyon, in the cold water.

  • Mixed
Water quality · US Clean Water Act
  • Aquatic lifeSupporting
What this classification means

EPA ATTAINS assessment unit 'Beaver River-3' (UT16030007-003_00), 2024 Integrated Report. Aquatic Life use: Fully Supporting. 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) · UT16030007-003_00

The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity67 × 12%8.0
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Seasons & zones
  • Trout 1 January31 December
Related guides
Booking & contacts