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Rating depth structure for lake trout.
Recent public catches load as you reach this section.
536-acre lake in Thunder Bay District, Ontario. The lake tops out around 210 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey). Every species below gets its seasonal read from the same numbers driving the chart.
The outline encloses 538 acres, worked by 5.9 miles of shoreline — 3 islands included. With a 1.8 development index there's bank structure worth casting at, in moderation. 8% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 1.8 mi with a 0.8-mi widest point. Thunder Bay District claims this one. Its nearest charted neighbour, Katzenbach Lake, is 1 mi to the southeast.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official Ontario MNRF Fish ON-Line record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
When the water first warms, lake trout slide up into 10 to 40 ft. Summer is a 50 to 120 ft game here, winter a 20 to 80 ft one. Start at Break off the point. It's a drop-off holding about 60 ft of water and rates prime come winter. The feeding windows run early morning. Keep a white tube jig (deep) or a magnum spoon on downrigger rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (1 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Break off the point (60 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Main-lake point (1 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Break off the point (60 ft) | White tube jig, Airplane jig |
Start shallow in spring: cisco (lake herring) sit in 10 to 40 ft that time of year. Warm water sends them out to 40 to 80 ft; cold water stacks them in 20 to 60 ft. Top water on the chart: Break off the point, a drop-off in the 60 ft range, prime in winter. Fish it in early morning and you'll meet the bite. Throw a vertical flutter spoon (small) or a drop-shot micro plastic until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | open water | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Break off the point (60 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Break off the point (60 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Count 8 structure marks on this chart. The deepest, Deep basin, sits near 210 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 Mishi Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Mishi Lake is about 210 ft (64 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1970, a decades-old survey (a transect sounding survey).
Anglers target lake trout, cisco (lake herring) on Mishi Lake.
Break off the point is the top-rated area: a drop-off in about 60 ft of water that rates prime for lake trout in winter. Open the map above to see every rated 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 Mishi Lake 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.
Katzenbach Lake 1 mi · Ellen Lake 5 mi · Jarvey Lake 16 mi · Gibson Lake 18 mi · West Kabenung Lake 19 mi · Molybdenite Lake 19 mi · Knife Lake 19 mi · Obatanga Lake 21 mi · Furnival Lake 22 mi · Kabenung Lake 22 mi · North McCrea Lake 23 mi · Bogle Lake 23 mi
See how Mishi Lake stacks up: best lake trout lakes in Ontario · best cisco (lake herring) lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.