Freestone · Granite · Castilla y León / Ávila (Sierra de Gredos)

Río Corneja system (research priority)

Río Corneja system (research priority) — Río Corneja. Tramo medio a su paso por La Ribera

A Tormes tributary in the Corneja valley noted for outstanding trout genetics.

Poor · Brown Trout
Klinkhammer · 14-18
Closed season
Out of season. Plenty of other water available now.
Closed — confidence not applicable today.
What moved it
  • LevelProxyvia Río Tormes (upper — Sierra de Gredos)
  • Water temp22.2°C
  • ClarityVery colouredColouring up
Today's fly
Klinkhammer
Klinkhammer14-18
Proven pattern for this period
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Río Tormes (upper — Sierra de Gredos)
Water temp22.2°C
ClarityVery coloured
Weather33°C
WindNW 22 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead0.6 mm

No gauge on this water — conditions are inferred from Río Tormes (upper — Sierra de Gredos). The trend transfers, the absolute level does not.

Water temperature for Brown Trout
Warm — slow
22°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season. The Corneja is small intimate Sierra de Gredos water — fishes well once snowmelt drops.
Where
Pool tails and pocket water through the Corneja system. Small-river scale; read each lie carefully.
Method
Short upstream dry-dropper; nymph the deeper pockets. The Corneja is research-priority water — careful approach, light tackle, fish each lie before moving.
Kit
8'6 ft #3 to 9 ft #4 — small mountain stream. Floating line, 9 to 12 ft leader to 4 lb fluoro. Studded boots.
Why this works
Water at 22.2°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour 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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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1
GrannomHatch
1
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.
  • Castilla y León licence required
  • Exact tramos and coto status need confirming from pescacastillayleon.es — this is a research-priority entry
  • Sin muerte likely on free-access sections.
What's coming
Plan ahead
5-day outlook
Water here around 22°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Río Corneja system (research priority) — Río Corneja. Tramo medio a su paso por La Ribera
    Río Corneja. Tramo medio a su paso por La Ribera
  2. Terrain map of the venue
    Terrain map
About this water

A Tormes tributary in the Corneja valley noted for outstanding trout genetics. This stream has a strong wild-trout reputation but exact tramos and cotos require official confirmation from pescacastillayleon.es before complete mapping. Likely character: clear mountain tributary with smaller pools and runs suited to dry fly and nymphing on lighter tackle. Clear mountain water in a scenic valley.

  • Granite
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature5 × 28%1.4
Flow80 × 22%17.6
Clarity15 × 18%2.7
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity41 × 12%4.9
Limiting factor: Water temperature (22.2°C) is outside Brown Trout's preferred range (10–16°C)= 41
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Tormes (upper — Sierra de Gredos)proxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 21 March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts