Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for walleye.
Recent public catches load as you reach this section.
3,571-acre lake in Kenora District, Ontario. The lake tops out around 10 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 1987 (a transect sounding survey). What follows comes from the same scoring engine that paints the spots above.
The outline encloses 3,587 acres, worked by 19.7 miles of shoreline. With a shoreline index of 2.3, this water is all arms and coves — edge habitat well beyond its acreage. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. The basin spans about 6.2 mi end to end and 1.8 mi across at its widest. It sits in Kenora District. Shellbrook Lake sits 16 mi northwest — the closest neighbouring chart.
Start shallow in spring: walleye sit in 3 to 10 ft that time of year. They don't go far with the seasons — 3 to 10 ft covers summer, 3 to 10 ft covers winter. Top water on the chart: Break off the point, a drop-off in the 8 ft range, prime in fall. Fish it in the evening and early morning and you'll meet the bite. Throw a crawler harness on bottom bouncer or a deep crankbait (trolled) until the fish tell you otherwise.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft chart-limited; documented 4 to 15 ft | dusk & dawn | Gravel shoal (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 10 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (8 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 10 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (8 ft) | Jigging rap, Jig + big minnow |
| Winter | 3 to 10 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (10 ft) | Jigging spoon + minnow head, Rattle bait |
Spring northern pike on Shagamu Lake hold shallow, usually 2 to 8 ft. They move out to 3 to 10 ft in summer and finish the year down in 3 to 10 ft. Put Shallow bay flat first on the milk run — a weed flat near 2 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 10 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Break off the point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 10 ft chart-limited; documented 6 to 18 ft | midday & dawn | Break off the point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 10 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (2 ft) | Tip-ups, Large jigging spoon |
Spring puts lake whitefish in skinny water — 3 to 10 ft is the zone. Summer fish stay in 3 to 10 ft, and winter fish hold in 3 to 10 ft. Summer lake whitefish concentrate at Deep basin, a prime-rated deep basin around 10 ft. Warm-month bites cluster around early morning. A blade bait vertical or a small jigging spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft chart-limited; documented 15 to 45 ft | midday & dawn | Gravel shoal (2 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 3 to 10 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (10 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 3 to 10 ft chart-limited; documented 8 to 30 ft | dusk | Gravel shoal (2 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 3 to 10 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (10 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Count 10 structure marks on this chart. The deepest, Deep basin, sits near 10 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 Shagamu Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Shagamu Lake is about 10 ft (3 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1987 (a transect sounding survey).
Anglers target walleye, northern pike, lake whitefish on Shagamu Lake.
Break off the point is the top-rated area: a drop-off in about 8 ft of water that rates prime for walleye in fall. The interactive chart above rates every spot for each species and season.
For walleye, the summer bite is best in the evening and 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 Shagamu 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.
Shellbrook Lake 16 mi · Wild Berry Lake 84 mi · Shamattawa Lake 84 mi · North Washagami Lake 90 mi · Spruce Lake 97 mi · Hawley Lake 104 mi · Pine Lake 107 mi · Sutton Lake 109 mi · Aquatuk Lake 113 mi · Winisk Lake 114 mi · Unnamed Lake 122 mi · Lake C056-05 125 mi
See how Shagamu Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best lake whitefish lakes in Ontario
More water nearby: Kenora District fishing maps (1173 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.