Lake depth chart
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355-acre lake in Thunder Bay District, Ontario. The lake tops out around 26 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. Here's the year, species by species, as the scoring engine sees it.
Traced from the shoreline, Nonwatinose Lake runs 355 acres with 3.8 miles of edge. Nearly circular (index 1.4), so the story is the bottom, not the bank. 75% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Tip to tip the water measures near 1.2 mi with a 0.7-mi widest point. The water lies in Thunder Bay District. For a second option, Nonwatin Lake lies 2 mi northwest.
Come spring, look for lake whitefish tight to the bank in 8 to 26 ft. Through summer count on 8 to 26 ft; the winter hold is 8 to 26 ft. Start at Deep basin. It's a deep basin holding about 22 ft of water and rates prime come summer. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
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 | 8 to 26 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (12 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 8 to 26 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (22 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 7 to 26 ft chart-limited; documented 8 to 30 ft | dusk | Break off the point (12 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 8 to 26 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (22 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Come spring, look for cisco (lake herring) tight to the bank in 7 to 26 ft. Through summer count on 8 to 26 ft; the winter hold is 8 to 26 ft. Start at Deep basin. It's a deep basin holding about 22 ft of water and rates prime come spring. Prime time lands in early morning. A vertical flutter spoon (small) or a drop-shot micro plastic is the honest summer answer here.
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 | 7 to 26 ft chart-limited; documented 10 to 40 ft | dawn & dusk | Deep basin (22 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 8 to 26 ft chart-limited; documented 40 to 80 ft | dawn | Deep basin (22 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Break off the point (12 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 8 to 26 ft chart-limited; documented 20 to 60 ft | dawn | Deep basin (22 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring walleye on Nonwatinose Lake hold shallow, usually 4 to 15 ft. They move out to 8 to 26 ft in summer and finish the year down in 8 to 26 ft. Put Break off the point first on the milk run — a drop-off near 12 ft that grades prime for fall. The feeding windows run the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
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 | 4 to 15 ft | dusk & dawn | Main-lake point (8 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 26 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (12 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 26 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (12 ft) | Jigging rap, Jig + big minnow |
| Winter | 8 to 26 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (22 ft) | Jigging spoon + minnow head, Rattle bait |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Expect a summer slide to 8 to 26 ft, then a winter hold in 8 to 26 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
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 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 8 to 26 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (22 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 8 to 26 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (22 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 8 to 26 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (22 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Time it for early morning and the evening. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (12 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Break off the point (12 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
In spring, smallmouth bass run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 26 ft, and winter fish settle into 8 to 26 ft. Main-lake point is the standout, a point at roughly 8 ft, rated prime for fall smallmouth bass. Time it for early morning and the evening. You won't need more than a drop shot (goby/minnow) or a ned rig most summer days.
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 12 ft | dawn & dusk | Main-lake point (8 ft) | Ned rig, Tube jig |
| Summer | 8 to 26 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (12 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (8 ft) | Jerkbait, Blade bait |
| Winter | 8 to 26 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (12 ft) | Blade bait, Hair jig |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 22 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 Nonwatinose Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Nonwatinose Lake is about 26 ft (8 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 whitefish, cisco (lake herring), walleye, yellow perch, northern pike, smallmouth bass on Nonwatinose Lake.
Deep basin is the top-rated area: a deep basin in about 22 ft of water that rates prime for lake whitefish in summer. The map above holds the full rated-spot list for every 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 Nonwatinose 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.
Nonwatin Lake 2 mi · Eskwanonwatin Lake 4 mi · Frazer Lake 5 mi · Mound Lake 5 mi · Purdom Lake 11 mi · Sturge Lake 11 mi · Elm Lake 12 mi · Little Sturge Lake 12 mi · Black Mountain Lake 12 mi · Cox Lake 13 mi · Pringle Lake 13 mi · Muskrat Lake 14 mi
See how Nonwatinose Lake stacks up: best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best northern pike lakes in Ontario · best yellow perch 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.