Stillwater · Peat · Co. Antrim / head of the Bush catchment

Altnahinch Reservoir

Photo of Altnahinch Reservoir

Altnahinch sits in exposed peaty moorland at the head of the Bush system.

Fair · Trout
Gosling · 8-10
A respectable few hours, if you choose your moments
Good wave on — drift country. A useful wave. Work the productive shore.
46% confidence
limited data

Altnahinch Reservoir is often best in spring through autumn.

What moved it
  • WindSW 16 km/hGentle breeze
Today's fly
Gosling
Gosling8-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Wind
Gentle breeze
SW 16 km/h
N
SW
from the south-west
Wave20 cm ripple
Water temp
Air temp21°C
CloudOvercast
Pressure1020 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
April–September
Where
Start with Bibio (10-12) — on the bob / top dropper. As evening approaches, switch to dries or emergers if you see surface activity.
The plan
Plan A

Start with Bibio (10-12) — on the bob / top dropper. As evening approaches, switch to dries or emergers if you see surface activity.

Plan B

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

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

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
1
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Lake OliveHatch
1
2
2
2
2
2
1

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

Ranked for today
Trout fly box
What's coming
Plan ahead
5-day outlook
Condition match
59%
Cloud50%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Other water nearby · 5
Gallery · 2
  1. Photo of Altnahinch Reservoir
    Altnahinch Reservoir — image via Wikipedia (Altnahinch Dam)
  2. Terrain map of the venue
    Terrain map
About this water

Altnahinch sits in exposed peaty moorland at the head of the Bush system. It is a classic shore-fishing reservoir in rougher country rather than an easy-access stocked park lake. The official DAERA material explicitly points anglers towards small attractor wets such as Bibio and Peter Ross, which tells you a lot about the venue's practical character.

  • Reservoir
  • Peat
Why this score
  • Murrough is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 March31 October
Related guides
Casting instructors near here
Booking & contacts