Freestone · Granite · East Tyrol

Isel

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Glacial freestone river draining Hohe Tauern granite peaks in East Tyrol, clear when low but colored by seasonal melt.

Prime · Brown Trout
Pheasant Tail Nymph · 14-18
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
75% confidence
What moved it
  • Flow31.3 m³/s
  • Water temp16.0°C
  • ClarityClear
Today’s fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-18
Upstream
Conditions on the water
Live gauge
Flow
Steady
31.3 m³/s
Water temp16.0°C
ClarityClear
Weather16°C
WindW 3 km/h
Pressure1019 hPa
Rain · recent18.6 mm
Rain · ahead10.4 mm

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

Water temperature for brown trout
Ideal
16°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
Excellent — water temperature is working for you, but time of day is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 11 active hatches hour by hour with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water 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
1
Grayling seasonSeason
1
2
2
2
2
1
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
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.
  • East Tyrolean glacial river
  • Fischerkarte + water permit required.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Möll
21 km
Brown trout · Rainbow trout · Brook trout
Seidlwinkelache
34 km
Brown trout
Hüttwinklache
37 km
Brown trout
Gail
37 km
Brown trout · Grayling
Rauriser Ache
46 km
Brown trout · Brook trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Glacial freestone river draining Hohe Tauern granite peaks in East Tyrol, clear when low but colored by seasonal melt. Wild brown trout and brook trout in demanding alpine water with a short fishing season. Tight-line nymphing is essential. Challenging but rewarding—the mountains are in every cast.

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

WFD classification · ATOK900410004

The full read · show the working · for brown trout · confidence 75%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Conditions total= 80
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Troutlate July (after snowmelt) → 30 September
  • Grayling15 July → 31 December
Related guides
Alpine Streamsmountain entomologyEuro Nymphingsubsurface methods
Booking & contacts