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Rating depth structure for lake trout.
Recent public catches load as you reach this section.
4,200-acre lake in Thunder Bay District, Ontario. The lake tops out around 231 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. Here is how the season plays out for each species, straight from the data behind the map.
The drawn water covers 4,216 acres wrapped in 36.9 miles of bank, broken up by 9 islands. With a shoreline index of 4.1, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 15% of the surface on the model — that's where the groceries are. The basin spans about 6.9 mi end to end and 3.2 mi across at its widest. Thunder Bay District claims this one. If the bite dies, Kaministiquia River is 6 mi to the north.
Early season lake trout use the shallows, holding in 10 to 40 ft. Summer is a 50 to 120 ft game here, winter a 20 to 80 ft one. The chart's best answer is Offshore hump — offshore hump, 22 ft, prime for winter. Best bite is early morning. Tie on a white tube jig (deep) or a magnum spoon on downrigger and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Sharp break (30 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Break off the point (104 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Offshore hump (22 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Offshore hump (22 ft) | White tube jig, Airplane jig |
Spring puts lake whitefish in skinny water — 15 to 45 ft is the zone. Warm water sends them out to 40 to 90 ft; cold water stacks them in 25 to 70 ft. Rock reef is the standout, a rock pile at roughly 6 ft, rated prime for fall lake whitefish. Plan around early morning in the warm months. A blade bait vertical or a small jigging spoon covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Offshore hump (22 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Sharp break (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (6 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Offshore hump (22 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Early season burbot use the shallows, holding in 25 to 70 ft. Summer is a 50 to 120 ft game here, winter a 15 to 60 ft one. The chart's best answer is Offshore hump — offshore hump, 22 ft, prime for winter. Best bite is after dark and midday. Tie on a heavy jig + cut bait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Offshore hump (22 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Break off the point (104 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Sharp break (30 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Offshore hump (22 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Structure-wise the chart holds 11 features, led in depth by Deep basin at roughly 196 ft.
Season dates, license requirements, and size and bag limits for Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Loch Lomond specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Loch Lomond is about 231 ft (70 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.
Anglers target lake trout, lake whitefish, burbot on Loch Lomond.
Offshore hump is the top-rated area: an offshore hump in about 22 ft of water that rates prime for burbot in winter. The interactive chart above rates every spot for each species and season.
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Loch Lomond is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Kaministiquia River 6 mi · Chub Lake 11 mi · Oliver Lake 11 mi · Cloud Lake 13 mi · Boulevard Lake 15 mi · Bearpad Lake 17 mi · Crystal Lake 18 mi · Lenore Lake 19 mi · Bell Lake 20 mi · Matson Lake 20 mi · Fallingsnow Lake 22 mi · Hazelwood Lake 23 mi
See how Loch Lomond stacks up: best lake trout lakes in Ontario · best lake whitefish lakes in Ontario · best burbot lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. See every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.