Freestone · Mixed · Alps / Savoie (Cœur de Savoie)

Gelon

Middle School Du Val Gelon venue image
Google Places

AAPPMA-managed tributary of the Isère at Valgelon–La Rochette.

Species

A proper day on the water

Low and clear — careful approach country. Stay small, stay accurate.

55% confidence in this read
Water temperature for grayling
Ideal
6°C est.ideal 4–14°C
0°14°28°
Why this score · for grayling
  • Temperature10028% weight
  • Flow6022% weight
  • Clarity8518% weight
  • Feeding Time1013% weight
  • Pressure807% weight
  • Prey Activity2012% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.5°C
Estimated
Clarity
Clear
Air temp
2°C
Wind
E 4 km/h
Calm
Pressure
1017 hPa
Rain · 48h
1.3 mm
No meaningful rain
Rain · ahead
9.4 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
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
10 ft #3 rod, floating line, long leader to 4 lb fluoro for nymphs.
Why this works
Good conditions. Temperature is favourable (100), 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.
  • AAPPMA permits.
Directions
Apple MapsGoogle Maps
About this water

AAPPMA-managed tributary of the Isère at Valgelon–La Rochette. Trout upstream, grayling in lower reaches. Alpine freestone on granite terrain. Spring through early autumn fishing. Mountain water with responsive character. Check local regulations for any restrictions or parcours requirements.

  • 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