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Fishing Cahill Lake: what the data says
227-acre lake near Ontario. The lake tops out around 100 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Here is how the season plays out for each species, straight from the data behind the map.
Brook Trout fishing at Cahill Lake
Spring brook trout on Cahill Lake hold shallow, usually 2 to 15 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 3 to 20 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated good for spring brook trout. Plan around early morning and the evening in the warm months. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Lake Trout fishing at Cahill Lake
Spring lake trout on Cahill Lake hold shallow, usually 10 to 40 ft. By summer they slide out to 30 to 100 ft, and by winter most fish are in 20 to 80 ft. The spot to know is Deep basin, a deep basin in about 85 ft of water that rates prime for lake trout in summer. In summer the feeding windows fall in early morning. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 30 to 100 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | White tube jig, Airplane jig |
Splake fishing at Cahill Lake
In spring, splake run shallow here, mostly 5 to 25 ft. Summer pushes them deeper, 25 to 60 ft, and winter fish settle into 10 to 45 ft. Break off the point is the standout, a drop-off at roughly 45 ft, rated prime for summer splake. Best bite is early morning and the evening. Tie on a trolled spoon at the thermocline or a white tube jig (deep) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 25 ft | dawn & dusk | Small casting spoon (gold/orange), Inline spinner |
| Summer | 25 to 60 ft | dawn & dusk | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait |
| Winter | 10 to 45 ft | dawn | Jigging spoon tipped with minnow head, Small white tube |
Cisco (Lake Herring) fishing at Cahill Lake
Start shallow in spring: cisco (lake herring) sit in 10 to 40 ft that time of year. By summer they slide out to 40 to 80 ft, and by winter most fish are in 20 to 60 ft. If you only fish one area, make it Deep basin: a deep basin around 85 ft that scores prime in summer. In summer the feeding windows fall in early morning. A vertical flutter spoon (small) or a drop-shot micro plastic covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Pumpkinseed fishing at Cahill Lake
Spring pumpkinseed on Cahill Lake hold shallow, usually 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 6 to 18 ft. Shallow bay flat is the standout, a weed flat at roughly 6 ft, rated prime for spring pumpkinseed. Plan around the evening and early morning in the warm months. A micro tube or a sponge spider (fly) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Tungsten ice jig + plastic, Tiny spoon |
Notable structure
- Deep basin: deep basin, around 85 ft
- Break off the point: drop-off, around 45 ft
- Main-lake point: point, around 25 ft
- Secondary point: point, around 25 ft
- Shallow bay flat: weed flat, around 6 ft
- Back-bay flat: weed flat, around 6 ft
Common questions
How deep is Cahill Lake?
Cahill Lake is about 100 ft 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 Cahill Lake?
Anglers target lake trout, brook trout, cisco (lake herring), splake, pumpkinseed on Cahill Lake.
Where is the best fishing spot on Cahill Lake?
Deep basin is the top-rated area: a deep basin in about 85 ft of water that rates prime for lake trout in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Cahill Lake?
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Olmstead Lake · Teesdale Lake · Chime Lake · Bell Lake · Perron Lake · Gauvreau Lake
See how Cahill Lake stacks up: best lake trout lakes in Ontario · best brook trout lakes in Ontario · best cisco (lake herring) lakes in Ontario · best splake lakes in Ontario
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