Freestone · Mixed · Alps / Savoie (Haute Maurienne)

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Major Savoyard alpine river in Haute Maurienne.

Species

A side-water session, not the main event

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

50% confidence in this read
Water temperature for grayling
Cool — slow
3°C est.ideal 4–14°C
0°14°28°
Why this score · for grayling
  • Temperature5928% weight
  • Flow6022% weight
  • Clarity8518% weight
  • Feeding Time1013% weight
  • Pressure807% weight
  • Prey Activity5012% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
2.8°C
Estimated
Clarity
Clear
Air temp
-6°C
Wind
SE 6 km/h
Calm
Pressure
1017 hPa
Rain · 48h
0.6 mm
No meaningful rain
Rain · ahead
5.0 mm
Light rain · next 48h

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

How to fish it · for grayling
When
Autumn through November prime.
Where
Faster runs and the heads of riffles through the middle valley.
Method
Euro-nymphing through the deeper pockets; switch to dries when sedges or olives come off in autumn afternoons.
Kit
10 ft #3 nymphing rod for the deep pockets; 9 ft #4 for dries. 4 to 5 lb fluoro tippet, 12 ft leader.
Why this works
Fair conditions. Clarity is favourable (85), Feeding time is weakest (10).
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
2
2
1
Grayling seasonSeason
1
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

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

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • Savoie AAPPMA permits.
Directions
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About this water

Major Savoyard alpine river in Haute Maurienne. 7 km no-kill fly-fishing course with barbless-hook requirement. Snowmelt-dominated — May–June best when melt provides volume and insect life emerges. Technical pocket-water fishing in high-alpine terrain on granite freestone. Wild trout in pristine conditions. Check Savoie AAPPMA for permits and regulations.

  • Mixed
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
  • Grayling3rd Saturday of May → 3rd Sunday of September
Other water nearby · 5
Booking & contacts