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33-acre lake in Timiskaming District, Ontario. The lake tops out around 62 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 1994 (an MNRF lake survey). Here's the year, species by species, as the scoring engine sees it.
Drawn out, this is 32 acres of water rimmed by 1.3 miles of bank. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. Littoral water — the productive band under ~15 ft — makes up 81% of this chart. Call it 0.5 mi long by 0.2 mi wide at the broadest reach. The water lies in Timiskaming District. Closest neighbour on DepthScout: Tyrrell L. 47, 1 mi southeast of here.
Spring lake whitefish on Mosher Lake hold shallow, usually 15 to 45 ft. By summer they slide out to 19 to 62 ft, and by winter most fish are in 19 to 62 ft. The chart's best answer is Deep basin — deep basin, 50 ft, prime for summer. Prime time lands in early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (40 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 19 to 62 ft | dawn | Deep basin (50 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | open water | Small spoon (gold), Jig + plastic larva |
| Winter | 19 to 62 ft | midday & dawn | Deep basin (50 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
When the water first warms, yellow perch slide up into 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. If you only fish one area, make it Break off the point: a drop-off around 40 ft that scores prime in fall. In summer the feeding windows fall in early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | open water | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Deep basin (50 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Break off the point (40 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Deep basin (50 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The spring pattern is a shallow one: northern pike in 2 to 8 ft. As the season builds they drop to 8 to 20 ft, wintering in 5 to 15 ft. Top water on the chart: Break off the point, a drop-off in the 40 ft range, good in fall. Time it for early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| 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 | 8 to 20 ft | dawn & dusk | open water | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (40 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | open water | Tip-ups, Large jigging spoon |
The chart marks 4 structure features on Mosher Lake; the deepest is Deep basin at about 50 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
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 Mosher Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Mosher Lake is about 62 ft (19 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1994 (an MNRF lake survey).
Anglers target lake whitefish, yellow perch, northern pike on Mosher Lake.
Deep basin is the top-rated area: a deep basin in about 50 ft of water that rates prime for lake whitefish in summer. Scroll up to the map for the complete spot list by species and season.
For lake whitefish, 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 Mosher 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.
Tyrrell L. 47 1 mi · Tyrrell L. 21 1 mi · Boot Lake 2 mi · Owl Lake 2 mi · Porphyry Lake 3 mi · Metikemedo L. 3 mi · Slim Lake 4 mi · Milly L. 4 mi · Fisher Lake 4 mi · Margueratt Lake 5 mi · North Gamble Lake 5 mi · Firth Lake 5 mi
See how Mosher Lake stacks up: best northern pike lakes in Ontario · best yellow perch lakes in Ontario · best lake whitefish lakes in Ontario
More water nearby: Timiskaming District fishing maps (515 charts). Browse all Ontario fishing maps or 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.