Freestone · Mixed · Colorado, US

Arkansas River — Bighorn Sheep & Royal Gorge (Cotopaxi to Parkdale)

Rocky canyon stretch of the Arkansas River in Royal Gorge, Colorado, with whitewater rapids breaking over boulders.
Today · Slow going — pick your moments
Sex Dungeon
Forecast · Today
Slow going — pick your moments
Slow going — pick your moments and do not force it.
45% projected
Today's fly
SD
Sex Dungeon
Conditions on the water · Today
Estimate
Level
Dry recently
No gauge reading
Water temp8.4°C
ClarityVery coloured
Weather7°C
WindN 10 km/h
Pressure1030 hPa
Rain · recent0.0 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
Cool — slow
8°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 clarity is right today, though insect activity could be better.
Likely species
Mayflies
Gammarids
Hatch timeline · todayQuiet day

Low insect activity predicted today

Sub-surface · on the nymphunder the surface

Hatch predictions

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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 · October 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
Fly box · Brown Trout
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Colorado licence
  • Gold Medal reach (down to the US-50 bridge at Parkdale)
  • Verify CPW rules.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
South Platte — Eleven Mile Canyon
51 km
85
Rainbow trout · Brown trout
Arkansas River — Browns Canyon (Buena Vista to Salida)
52 km
74
Brown trout · Rainbow trout
South Platte — Dream Stream (Spinney to Eleven Mile)
60 km
83
Rainbow trout · Brown trout
Gallery · 2
  1. Rocky canyon stretch of the Arkansas River in Royal Gorge, Colorado, with whitewater rapids breaking over boulders.
    Arkansas River (Royal Gorge, west of Canon City, Colorado, USA) 4
  2. Terrain map of the venue
    Terrain map
Water quality · US Clean Water Act
  • Aquatic life: Supporting
What this classification means

EPA ATTAINS assessment unit 'Arkansas River, all tributaries. Newlin Creek, Mineral Creek, Adobe Creek, and Oak Creek, mainstems and all tributares' (COARUA14e_A), 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) · COARUA14e_A

The full read · show the working · for Brown Trout · confidence 90%
How the 76 is built — score × weight = contribution
Temperature70 × 28%19.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity61 × 12%7.3
Conditions total= 76
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
Casting instructors near here
Booking & contacts