Spate · Limestone · Castilla y León

Río Orza

Río Orza venue image
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An Esla headwater rising in the Picos de Europa above Vegacerneja.

Good · Brown Trout
Klinkhammer · 14-18
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • Level0.34 mLast reading 1h ago
  • Water temp14.7°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.34 m
Last reading 1h ago
Water temp14.7°C
ClarityClear
Weather16°C
WindN 9 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead2.5 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for brown trout
Ideal
15°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 6 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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Evidence
Records-basedModerate confidence

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

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
1
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

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.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Embalse de Riaño
4.0 km
Brown trout
Río Yuso
11 km
Brown trout
Río Remolina
13 km
Brown trout
Río Cardaño
17 km
79
Brown trout
Río Ponga
24 km
Brown trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

An Esla headwater rising in the Picos de Europa above Vegacerneja. Short, steep, alpine — the Orza fishes like a stream rather than a river through most of its course, with plunge pools, pocket water and overhanging beech. Wild brown trout only. Best in June and July once snowmelt has cleared; the river is more or less unfishable through the spring freshet.

  • Limestone
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
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • TroutLast Sunday of March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts