Cold, rocky, broken water with wild brown trout. No pike — this is high-altitude granite trout water entirely above the reservoirs where invasives are established.
- Granite
Rules at a glance
- Public water
- Licence required
Water temperature for Brown Trout
Cool — slow4°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Madrid trout season. Spring olives April through May; summer evenings; small dark flies into autumn close. La Pedriza altitude means the upper Manzanares fishes later than the lower river.
Where
Upper Manzanares through La Pedriza national park. Pool tails and pocket water through dramatic granite slabs. Small intimate Sierra de Guadarrama water.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet, 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.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
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.
- Comunidad de Madrid licence required
- Verify coto and tramo status annually.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Terrain map
About this water
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature8 × 28%2.2
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity24 × 12%2.9
Limiting factor: Water temperature (3.5°C) is outside Brown Trout's preferred range (10–16°C)= 47
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Eresmaproxy
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
Related guides
Booking & contacts
Upper Río Manzanares (La Pedriza)
Mountain headwaters of the Manzanares in the La Pedriza sector of the Sierra de Guadarrama.
Water temperature for Brown Trout
Cool — slow4°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Madrid trout season. Spring olives April through May; summer evenings; small dark flies into autumn close. La Pedriza altitude means the upper Manzanares fishes later than the lower river.
Where
Upper Manzanares through La Pedriza national park. Pool tails and pocket water through dramatic granite slabs. Small intimate Sierra de Guadarrama water.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet, 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.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
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.
- Comunidad de Madrid licence required
- Verify coto and tramo status annually.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Terrain map
About this water
Cold, rocky, broken water with wild brown trout. No pike — this is high-altitude granite trout water entirely above the reservoirs where invasives are established.
- Granite
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature8 × 28%2.2
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity24 × 12%2.9
Limiting factor: Water temperature (3.5°C) is outside Brown Trout's preferred range (10–16°C)= 47
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Eresmaproxy
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
Related guides
Booking & contacts
At a glance
Upper Río Manzanares (La Pedriza) is a mountain freestone river in Comunidad de Madrid (Sierra de Guadarrama — La Pedriza), Spain. The catchment geology is recorded as granite, and the water sits at about 1,365 m above sea level. The species listed for this water is brown trout. Best window recorded for anglers: May–July. Core methods listed: Short-line nymphing; Dry fly. Nearby waters in our listings include Río Lozoya (cotos & tramos) at 15 km, Río Eresma at 16 km and Río Moros at 23 km.