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48-acre lake in Thunder Bay District, Ontario. The lake tops out around 40 ft. The depth data here comes from the Ontario MNRF survey of 1999 (a transect sounding survey). Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 48 acres wrapped in 2.1 miles of bank. With a shoreline index of 2.2, this water is all arms and coves — edge habitat well beyond its acreage. 58% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 0.7 mi end to end and 0.3 mi across at its widest. Thunder Bay District claims this one. Its nearest charted neighbour, Pete Lake, is 2 mi to the east.
Early season brook trout use the shallows, holding in 2 to 15 ft. Summer is a 10 to 30 ft game here, winter a 3 to 20 ft one. The chart's best answer is Break off the point — drop-off, 29 ft, prime for summer. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Secondary point (11 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (29 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Secondary point (11 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (2 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, lake trout slide up into 10 to 40 ft. There's no big seasonal slide here — summer means 12 to 40 ft, winter 10 to 40 ft. Start at Deep basin. It's a deep basin holding about 40 ft of water and rates prime come summer. 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 (16 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 12 to 40 ft | dawn | Deep basin (40 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 8 to 40 ft | dusk & dawn | Main-lake point (16 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 10 to 40 ft | dawn | Deep basin (40 ft) | White tube jig, Airplane jig |
Structure-wise the chart holds 5 features, led in depth by Deep basin at roughly 40 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 West Pennock specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
West Pennock is about 40 ft (12 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1999 (a transect sounding survey).
Anglers target brook trout, lake trout on West Pennock.
Deep basin is the top-rated area: a deep basin in about 40 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.
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.
Fishing on West Pennock 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.
Pete Lake 2 mi · Echo Lake 3 mi · Marks Lake 5 mi · Adrian Lake 8 mi · Stephens Lake 10 mi · Whitefish Lake 10 mi · Sunset Lake 11 mi · Head Lake 12 mi · Blossom Lake 12 mi · Thunder Lake 12 mi · Batwing Lake 13 mi · Castle Lake 13 mi
See how West Pennock stacks up: best lake trout lakes in Ontario · best brook trout lakes in Ontario
More water nearby: Thunder Bay District fishing maps (662 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.