Gammarids
Brown and rainbow trout in tight canyon water. The gorge is known as habitat for the griffon vulture, adding to the wild character. Check locally for current permit arrangements and season.
- Limestone
Rules at a glance
- Permit required
Water temperature for Rainbow Trout
Cool — slow10°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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.
Likely species
Hatch timeline · todayPeak at 11am
12pm(now) — Autumn Needle Fly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 35%
Also:Autumn Olive29%
Peak emergence window3 food groups active
Peak activity at 11am — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow Trout fly box
Karst salmonid rivers with a strong dry-fly identity, but nymphs and larger seasonal patterns still matter, especially in spring.
Permits & access
Permit required — see local rules.
- Fishing licence plus the relevant local association permit
- Check the current district and gorge-specific rules before travel.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Gallery · 2
Terrain map
About this water
The full read · show the working · for Rainbow Trout · confidence 65%
How the 0 is built — score × weight = contribution
Temperature98 × 28%27.4
Flow28 × 22%6.2
Clarity45 × 18%8.1
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity44 × 12%5.3
Conditions total= 63
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
A drop and clear would lift the flow and clarity scores.
Directions
Seasons & zones
- Trout check current local association rules → check current local association rules
Related guides
Booking & contacts
Trešnjica Gorge
Small gorge river flowing through narrow limestone gorge before joining the Drina—steep, intimate canyon fishing with plunge pools, pockets and fast runs.
Water temperature for Rainbow Trout
Cool — slow10°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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.
Likely species
Hatch timeline · todayPeak at 11am
12pm(now) — Autumn Needle Fly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 35%
Also:Autumn Olive29%
Peak emergence window3 food groups active
Peak activity at 11am — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 4 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Evidence
Records-basedModerate confidence
Based on species-occurrence records, not local invertebrate surveys.
Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Rainbow Trout fly box
Karst salmonid rivers with a strong dry-fly identity, but nymphs and larger seasonal patterns still matter, especially in spring.
Permits & access
Permit required — see local rules.
- Fishing licence plus the relevant local association permit
- Check the current district and gorge-specific rules before travel.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Gallery · 2
Terrain map
About this water
Brown and rainbow trout in tight canyon water. The gorge is known as habitat for the griffon vulture, adding to the wild character. Check locally for current permit arrangements and season.
- Limestone
The full read · show the working · for Rainbow Trout · confidence 65%
How the 0 is built — score × weight = contribution
Temperature98 × 28%27.4
Flow28 × 22%6.2
Clarity45 × 18%8.1
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity44 × 12%5.3
Conditions total= 63
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
A drop and clear would lift the flow and clarity scores.
Directions
Seasons & zones
- Trout check current local association rules → check current local association rules
Related guides
Booking & contacts
At a glance
Trešnjica Gorge is a spate river in Serbia / Western Serbia (Ljubovija). The catchment geology is recorded as limestone, and the water sits at about 197 m above sea level. Species listed for this water: brown trout and rainbow trout. Best window recorded for anglers: Late spring to summer in stable low water, with exact legal timing checked locally. Core methods listed: Upstream nymph; Dry fly. Nearby waters in our listings include Drina at 26 km, Gradac at 40 km and Crni Rzav & Zlatibor streams at 55 km.