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Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
20-acre lake in Grey County, Ontario. The lake tops out around 15 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 1960, a decades-old survey (an MNRF lake survey). Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, North Louise Lake runs 19 acres with 0.8 miles of edge. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. Tip to tip the water measures near 0.3 mi with a 0.2-mi widest point. You'll find it in Grey County. The nearest mapped water is Louise Lake, 0 mi to the south.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Midsummer fish sit out in 5 to 15 ft before dropping to 5 to 15 ft for winter. Spring largemouth bass concentrate at Shallow bay flat, a prime-rated weed flat around 1 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (1 ft) | Spinnerbait, Chatterbait |
| Summer | 5 to 15 ft | dawn & dusk | Shoreline break (2 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (1 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 5 to 15 ft | midday | Deep basin (4 ft) | Blade bait, Jigging spoon |
When the water first warms, rock bass slide up into 2 to 10 ft. Summer is a 4 to 15 ft game here, winter a 5 to 15 ft one. Start at Deep basin. It's a deep basin holding about 4 ft of water and rates prime come winter. The feeding windows run the evening. Keep a ned rig (small) or a marabou jig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | open water | 1/16 oz jig + grub, Small inline spinner |
| Summer | 4 to 15 ft | dusk | Shoreline break (2 ft) | Ned rig (small), Marabou jig |
| Fall | 5 to 15 ft | midday | Shoreline break (2 ft) | Small tube jig, Inline spinner |
| Winter | 5 to 15 ft | midday | Deep basin (4 ft) | Tungsten jig + plastic, Small spoon + spike |
4 pieces of structure are mapped here — Deep basin, around 4 ft, is the deepest of them.
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 North Louise Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
North Louise Lake is about 15 ft (5 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1960, a decades-old survey (an MNRF lake survey).
Anglers target largemouth bass, rock bass on North Louise Lake.
Shallow bay flat is the top-rated area: a weed flat in about 1 ft of water that rates prime for largemouth bass in spring. The map above holds the full rated-spot list for every species and season.
For largemouth bass, 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 North Louise 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.
Louise Lake 0 mi · Boyd Lake 1 mi · Copps Lake 1 mi · Sullivan L. F 3 mi · Welbeck Mill Pond 3 mi · Sullivan L. E 4 mi · Harrison Lake 4 mi · Sullivan L. D1 5 mi · Habermehl Lake 6 mi · McCullough Lake 6 mi · Tobermory Lake 6 mi · Westfall's Lake 7 mi
See how North Louise Lake stacks up: best largemouth bass lakes in Ontario · best rock bass lakes in Ontario
More water nearby: Grey County fishing maps (47 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.