Stillwater · Limestone · Jura / Haut-Jura (Les Rousses)

Lac des Rousses

Lac des Rousses venue image
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Protected natural lake at the Les Rousses station.

Marginal · Trout
CDC Emerger · 16-20
A patient day, if you fancy it
Good wave on — drift country. Take your time — read the water before you cast.
41% confidence
limited data

This venue is often best in spring through autumn.

What moved it
  • WindNW 9 km/hLight breeze
Today’s fly
CDC Emerger
CDC Emerger16-20
Dead-drift
Conditions on the water
Live gauge
Wind
Light breeze
NW 9 km/h
N
NW
from the north-west
WaveRipple
Water temp
Air temp19°C
CloudBroken
Pressure1022 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for trout
When
The sedge is on. Buzzer may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

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
Grayling seasonSeason
1
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Trout fly box
Permits & access
Permit required — see local rules.
  • AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Condition match
79%
Cloud70%
Wind100%
Temp60%

A good match for this venue — most conditions are close to what it fishes best in.

Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Protected natural lake at the Les Rousses station. Brown trout (min 35 cm), rainbow trout stocked. Fly-fishing opportunity in accessible mountain terrain. Spring through early autumn best. Car-accessible alpine lake. Check Haut-Jura regulations for permits and daily catch limits.

  • Lake
  • Limestone
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRDR10327

Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Sedge is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
  • Grayling3rd Saturday of May → 31 December
Related guides
Booking & contacts