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Fishing Loch an Iasgaich: what the data says
40-acre lake near Na h-Eileanan an Iar. The lake tops out around 16 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Loch an Iasgaich runs 40 acres with 2 miles of edge. A development index of 2.3 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 96% of the water is 15 ft or less as modeled, the band where the food chain lives.
Brown Trout fishing at Loch an Iasgaich
Spring brown trout on Loch an Iasgaich hold shallow, usually 2 to 16 ft. Even in summer they hold at 5 to 16 ft; winter keeps them in 2 to 16 ft. Put Break off the point first on the milk run — a drop-off near 7 ft that grades prime for summer. The feeding windows run after dark and early morning. The summer box starts with a spoon at the thermocline or a deep stickbait (night).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 16 ft | dawn & dusk | Main-lake point (8 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 5 to 16 ft | night & dawn | Break off the point (7 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 3 to 16 ft | dusk & dawn | Main-lake point (8 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 2 to 16 ft | dawn | Break off the point (7 ft) | Jigging spoon, Small stickbait (slow) |
European Perch fishing at Loch an Iasgaich
In spring, european perch run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 5 to 16 ft before dropping to 5 to 16 ft for winter. Fall european perch concentrate at Deep basin, a prime-rated deep basin around 14 ft. Fish it in early morning and you'll meet the bite. You won't need more than a drop-shot micro plastics or a small crankbait (perch pattern) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | open water | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 5 to 16 ft | dawn | Deep basin (14 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 5 to 16 ft | midday | Deep basin (14 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 5 to 16 ft | midday & dawn | Deep basin (14 ft) | Tungsten jig + maggots, Small balance jig |
Northern Pike fishing at Loch an Iasgaich
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 5 to 16 ft, and winter fish settle into 5 to 15 ft. Break off the point is the standout, a drop-off at roughly 7 ft, rated prime for fall northern pike. Time it for early morning and the evening. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | open water | #5 inline spinner, Spoon (red/white) |
| Summer | 5 to 16 ft | dawn & dusk | Break off the point (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 5 to 16 ft | midday & dawn | Break off the point (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Main-lake point (8 ft) | Tip-ups, Large jigging spoon |
Notable structure
- Deep basin: deep basin, around 14 ft
- Main-lake point: point, around 8 ft
- Secondary point: point, around 8 ft
- Break off the point: drop-off, around 7 ft
Common questions
How deep is Loch an Iasgaich?
Loch an Iasgaich is about 16 ft (5 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Loch an Iasgaich?
Anglers target northern pike, european perch, brown trout on Loch an Iasgaich. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Where is the best fishing spot on Loch an Iasgaich?
Deep basin is the top-rated area: a deep basin in about 14 ft of water that rates prime for european perch in fall. The map above holds the full rated-spot list for every species and season.
When is the best time to fish Loch an Iasgaich?
For brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Loch Leòdasaigh or Loch Leodsay 1 mi · Loch Carabhat or Loch Caravat 1 mi · Loch Tormasad Beag 2 mi · Loch Tormasad 2 mi · Loch na Còinnich 2 mi · Loch a Bharpa 2 mi · Loch an t-Seasgain 3 mi · Loch na Coithir-Eileana 3 mi · Loch ic Colla 3 mi · Loch a Chladaich 3 mi · Loch nan Garbh Chlachan 3 mi · Loch Huna 3 mi
See how Loch an Iasgaich stacks up: best northern pike lakes in United Kingdom · best european perch lakes in United Kingdom · best brown trout lakes in United Kingdom
Browse all United Kingdom fishing maps or see every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.