Spate · Limestone · Asturias, Spain

Río Bedón

Senda del Río Bedón venue image
Google Places

The Bedón is a diminutive limestone stream — just 12 km of crystal-clear mountain water holding small but eager wild browns (10–20 cm).

Good · Brown Trout
Ignita CDC · 16-20
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • Level0.37 mLast reading 20h ago
  • Water temp15.6°C
  • ClarityClear
Today’s fly
IC
Ignita CDC16-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.37 m
lowspate
Water temp15.6°C
ClarityClear
Weather19°C
WindE 12 km/h
Pressure1025 hPa
Rain · recent6.2 mm
Rain · ahead2.4 mm

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

Water temperature for brown trout
Ideal
16°C est.ideal 1016°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 river flow is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 7 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

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
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
Beats · 2
Rales · 2.4 kmC&R trout
C&R trout stretch — Puente de Rales to Puente de San Martín.
Beat detail
Daily permit required, all fish returned
Upstream: Puente de Rales
Downstream: Puente de San Martín
Rales beat map
San Antolín · 1.8 kmTrout permit
Trout permit stretch — Puente de San Martín to Puente viejo de San Antolín.
Beat detail
Daily permit required, keep within bag limits
Upstream: Puente de San Martín
Downstream: Puente viejo de San Antolín
San Antolín beat map
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Asturian fishing licence required
  • In 2026 many trout waters run to 15 August, but salmon zones, mountain zones, tramos sin muerte, and border stretches can differ
  • Check local coto and tramo rules before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

The Bedón is a diminutive limestone stream — just 12 km of crystal-clear mountain water holding small but eager wild browns (10–20 cm). Ultra-responsive (2 hours to spate), with pools and runs where a 3-weight feels powerful. Mayfly hatches May–June are exceptional; terrestrials work in summer. Accessible from coastal Llanes, uncrowded. A river that teaches streamcraft and observation in a package you can fish in an afternoon.

Under the surface

The Bedión is a slate-fed tributary arriving into the Dobra network. The river is smaller, steep, and spate-responsive throughout its course. The upper reaches show pure slate character in step-pool confines; the descent is rapid and the water amber-toned throughout. The Bedión's technical simplicity is its defining feature — step-pool or briefly interrupted riffle, responding immediately to Cantabrian rainfall. The pools available are secondary to the river's main character, which is responsive descent. The wading demands care throughout; the insecure slate slabs and the rapid current require commitment.

Wading: Wet limestone slabs in upper pocket water

  • Limestone
  • Partly confined
  • Step pool
  • Pool riffle
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · ES018MSPFES133MAR000640

The full read · show the working · for brown trout · confidence 75%
How the 75 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time75 × 13%9.8
Pressure80 × 7%5.6
Insect activity44 × 12%5.3
Conditions total= 75
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Related guides
Booking & contacts