Freestone · Granite · Castilla y León / Ávila (upper Alberche headwaters)

Río Alberche

Río Alberche terrain map
Terrain map

Upper Ávila-side Alberche row: a granite freestone rising on the Sierra de Gredos and flowing south out of Ávila.

Species

About as good as it gets

Low and clear — careful approach country. Take your time — read the water before you cast.

75% confidence in this read
Water temperature for brown trout
Ideal
14°C est.ideal 10–16°C
0°14°28°
The full read · show the working · for brown trout · confidence 75%
How the 82 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity63 × 12%7.6
Conditions total= 82
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.
Conditions
●Live gauge
Level
0.25 m
Water temp
14.0°C
Estimated
Clarity
Clear
Air temp
15°C
Wind
NW 12 km/h
Gentle breeze
Pressure
1017 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
0.0 mm
No meaningful rain · next 48h

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

Evidence
Records-basedModerate confidence

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

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 — water temperature is right today, though time of day could be better.
Through the year
0–3 scale · June 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.

Permits & access
Permit required — see local rules.
  • Castilla y León fishing licence required on the Ávila side
  • Check the exact upper Alberche tramo in the official visor before travel rather than assuming one simple Gredos permit model.
Directions
Apple MapsGoogle Maps
About this water

Upper Ávila-side Alberche row: a granite freestone rising on the Sierra de Gredos and flowing south out of Ávila. This entry should be read as the upper mountain Alberche near the Gredos headwaters, not as the full cross-regional river. Clear, cold headwaters, pocket water, and granite pool-and-run structure support wild browns and technical small-river tactics.

  • Granite
Seasons & zones
  • Trout21 March → 31 July
Other water nearby · 5
Related guides
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