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

Río Tormes (upper — Sierra de Gredos)

The Río Tormes flowing through El Barco de Ávila in the lower upper-valley reach.

The upper Tormes rises on the northern slopes of the Sierra de Gredos — high-altitude granitic mountain water, cold and clear, dropping through pocket water, tight runs, and pools fringed with broom and pine.

Tomorrow · Closed season
Pheasant Tail Nymph
Forecast · Tomorrow
Closed season
Out of season. Try elsewhere.
45% projected
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph
Conditions on the water · Tomorrow
Live gauge
Level
Rising
0.73 m
Lifting fast
Water temp3.4°C
ClarityUnfishable
Weather6°C
WindN 12 km/h
Pressure1016 hPa
Rain · recent80.3 mm
Rain · ahead4.9 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
Cool — slow
3°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the open trout season once snowmelt drops — late spring through the close. Sierra de Gredos altitude means the Tormes upper fishes later than the lower river.
Where
High-altitude Gredos pocket water through the Tormes headwaters. Pool tails and the seams behind boulders; the river is small intimate water.
Method
Short upstream dry-dropper to wild fish; nymph the deeper pockets between hatches. The Gredos water is clear and demanding — short casts, careful approach.
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.
Hatch timeline · tomorrowQuiet day

Low insect activity predicted today

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

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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 · November 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
Brown SedgeHatch
1
2
2
2
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 autonómica fishing licence required
  • Coto de Zapardiel: sin muerte (C&R), barbless single hooks only
  • Permits allocated annually — apply through Junta portal
  • Free-access trout waters generally C&R
  • Season opens 21 March; verify exact tramo dates annually.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Zapardiel de la Ribera
6.0 km
0
Brown trout
Río Corneja system (research priority)
12 km
0
Brown trout
Río Tiétar
28 km
0
Brown trout
Río Jerte & Valle del Jerte gargantas
39 km
0
Brown trout
Embalse de Santa Teresa
38 km
Barbel · Carp · Pike
Gallery · 6
  1. The Río Tormes flowing through El Barco de Ávila in the lower upper-valley reach.
    Río Tormes at El Barco de Ávila
  2. The Río Tormes at La Angostura de Tormes showing the granite rounded-stone riverbed.
    Río Tormes at La Angostura
  3. The Río Tormes and Prado del Toro meadow at Navalperal de Tormes, entrance to the Gredos park.
    Río Tormes at Navalperal de Tormes
  4. The Río Tormes flowing through Navacepeda de Tormes, Ávila, below the Gredos massif.
    Río Tormes at Navacepeda
  5. The Tormes river route through the valley at Navarredonda de Gredos.
    Río Tormes at Navarredonda de Gredos
  6. Terrain map of the venue
    Terrain map
About this water

The centrepiece is the Coto de Zapardiel de la Ribera, a sin muerte beat from Puente de Navalperal de Tormes to the Garganta del Hornillo confluence. Wild brown trout of native Iberian lineage are maintained by the Centro Ictiogénico de Aliseda de Tormes, preserving Alto Tormes and Tiétar genetic populations. This is the Tormes that most trout anglers picture first: Puente del Congosto and El Barco de Ávila are the practical access hubs.

  • Granite
The full read · show the working · for Brown Trout · confidence 50%
How the 0 is built — score × weight = contribution
Temperature11 × 28%3.1
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity12 × 12%1.4
Limiting factor: Water temperature (3.8°C) is outside Brown Trout's preferred range (10–16°C)= 48
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 21 March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts
At a glance

Río Tormes (upper — Sierra de Gredos) is a freestone river in Castilla y León / Ávila (Sierra de Gredos), Spain. The catchment geology is recorded as granite, and the water sits at about 1,357 m above sea level. The river is described as roughly 25 km long. The species listed for this water is brown trout. The trout season is recorded as running from 21 March to 31 July. Core methods listed: Euro nymph / short-line nymphing; Upstream dry fly; Czech nymph (deep pockets). Level and flow data for this water is linked from 1 gauge. Nearby waters in our listings include Zapardiel de la Ribera at 6.0 km, Río Corneja system (research priority) at 12 km and Río Tiétar at 28 km.