Freestone · Limestone · Castilla y León

Río Jerea

A short Burgos limestone trout river rising in the Montes de Ordunte and joining the Ebro near Trespaderne.

Species

About as good as it gets

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

90% confidence in this read
Water temperature for brown trout
Ideal
12°C est.ideal 1016°C
0°14°28°
Why this score · for brown trout
  • Temperature10028% weight
  • Flow8022% weight
  • Clarity9518% weight
  • Feeding Time8513% weight
  • Pressure807% weight
  • Insect activity6512% weight
Conditions
Level
0.32 m
Water temp
12.2°C
Estimated
Clarity
Clear
Air temp
19°C
Wind
NE 20 km/h
Gentle breeze
Pressure
1016 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
6.9 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
Excellent — conditions well-balanced, with water temperature particularly in your favour.
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
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Permits & access
Permit required — see local rules.
  • Castilla y León licence required
  • Burgos provincial tramo rules apply.
Directions
About this water

A short Burgos limestone trout river rising in the Montes de Ordunte and joining the Ebro near Trespaderne. The Jerea is intimate water — narrow, often shaded by oak and beech, with classic small-river pool-and-riffle structure. Wild brown trout only. Best fished from late April through June in the middle reaches around Virués; the upper limestone sections hold up later into summer.

  • Limestone
Seasons & zones
  • TroutLast Sunday of March → 31 July
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