Freestone · Granite · Corsica / Haute-Corse

Golo (Golu)

Golo (Golu) terrain map
Terrain map

Corsica's longest river flowing from central mountains northward through lower-gradient terrain than most island streams.

Marginal · Brown Trout
Small Perdigón · 16-20
Marginallive now
Slow going — pick your moments
River high but settled. Take your time — read the water before you cast.
80% confidence
What moved it
  • Level1.61 mLast reading 6h ago
  • Water temp19.1°C
  • ClarityClear
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
1.61 m
Last reading 6h ago
Water temp19.1°C
ClarityClear
Weather23°C
WindW 5 km/h
Pressure1019 hPa
Rain · recent1.0 mm
Rain · ahead3.5 mm

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

Water temperature for brown trout
Warm — slow
19°C est.ideal 10–16°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
⚠️ Water at 19.1°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

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

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Evidence
Survey-backed · regionalModerate confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
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
GrannomHatch
1
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.
  • Haute-Corse regulations
  • Carte de pêche required.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here around 19°C — probably warm enough to stress brown trout. These are likely cooler.
Restonica
19 km
~18°C
Brown trout
Tavignano (Tavignanu)
22 km
~19°C
Brown trout
About this water

Corsica's longest river flowing from central mountains northward through lower-gradient terrain than most island streams. Endemic trout water with better volume than typical Mediterranean torrents. Mix of pocket water and longer pools. Nymphing and small dries effective. Regulatory development for no-kill sections ongoing.

  • Granite
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

WFD classification · FRER10807

The full read · show the working · for brown trout · confidence 80%
How the 33 is built — score × weight = contribution
Temperature38 × 28%10.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity59 × 12%7.1
Conditions total= 65
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
Related guides
Pyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts