Spate · Granite · Comunidad de Madrid / Sierra Norte (Sierra de Guadarrama)

Río Madarquillos (TPE II)

Río Madarquillos (TPE II) terrain map
Terrain map

The Madarquillos runs as a small, cold tributary through the Sierra Norte from Horcajo and Madarcos toward the Puentes Viejas basin, earning designation as TPE II (Tramo de Pesca Experimental) in Madrid's conservation framework.

Species

A side-water session, not the main event

Low and clear — careful approach country. Long leader, small flies, slower casts.

55% confidence in this read
Water temperature for brown trout
Cool — slow
6°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature3128% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time4513% weight
  • Pressure807% weight
  • Prey Activity1912% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.7°C
Estimated
Clarity
Clear
Air temp
6°C
Wind
N 5 km/h
Calm
Pressure
1016 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
4.0 mm
Light rain · next 48h

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

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
Fair conditions. Clarity is favourable (95), Prey activity is weakest (19).
Through the year
0–3 scale · May 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.

Permits & access
Permit required — see local rules.
  • Comunidad de Madrid fishing licence required
  • TPE II has its own access days and mandatory reporting structure, so check the exact TPE conditions rather than using the main Lozoya coto logic.
Directions
Apple MapsGoogle Maps
About this water

The Madarquillos runs as a small, cold tributary through the Sierra Norte from Horcajo and Madarcos toward the Puentes Viejas basin, earning designation as TPE II (Tramo de Pesca Experimental) in Madrid's conservation framework. Fishing is catch-and-release only, limited to Tuesday, Wednesday, and Saturday with mandatory catch reporting—a framework that trades access frequency for scientific accountability. Permits are managed locally through PESCA Sierra Norte. The stream itself is intimate: tight pocket water and short pools demand small dries and delicate nymphing in classic granitic freestone habitat. Wild browns respond to stealth and precision; false casts and heavy wading carry consequences in confines this tight.

  • Granite
Seasons & zones
  • Trout2nd Sunday of March → 3rd Sunday of July
Other water nearby · 5
Booking & contacts