Lake depth chart
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18-acre lake in Algoma District, Ontario. The lake tops out around 24 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 2021 (an MNRF lake survey). The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 17 acres, worked by 0.6 miles of shoreline. Its 1.1 shoreline index means few bank features; the contours below do the pattern work. About 31% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. It sits in Algoma District. If the bite dies, Edith L. is 2 mi to the north.
Early season splake use the shallows, holding in 5 to 24 ft. Even in summer they hold at 7 to 24 ft; winter keeps them in 5 to 24 ft. Put Shoreline break first on the milk run — a drop-off near 23 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a trolled spoon at the thermocline or a white tube jig (deep) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 24 ft | dawn & dusk | Shoreline break (23 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 7 to 24 ft | dawn & dusk | Shoreline break (23 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 7 to 24 ft | dawn & dusk | Shoreline break (23 ft) | Casting spoon, Jerkbait |
| Winter | 5 to 24 ft | dawn | Shoreline break (23 ft) | Jigging spoon tipped with minnow head, Small white tube |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Midsummer fish sit out in 7 to 24 ft before dropping to 7 to 24 ft for winter. Spring yellow perch concentrate at Shallow bay flat, a prime-rated weed flat around 4 ft. Fish it in early morning and you'll meet the bite. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 7 to 24 ft | dawn | Deep basin (24 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 7 to 24 ft | midday | Deep basin (24 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 7 to 24 ft | midday & dawn | Deep basin (24 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, rock bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 5 to 20 ft, and winter fish settle into 7 to 24 ft. Deep basin is the standout, a deep basin at roughly 24 ft, rated prime for winter rock bass. Time it for the evening. You won't need more than a ned rig (small) or a marabou jig most summer days.
| 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 | 5 to 20 ft | dusk | Shoreline break (23 ft) | Ned rig (small), Marabou jig |
| Fall | 8 to 22 ft | midday | Shoreline break (23 ft) | Small tube jig, Inline spinner |
| Winter | 7 to 24 ft | midday | Deep basin (24 ft) | Tungsten jig + plastic, Small spoon + spike |
Tower Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 24 ft down.
Access data: Geospatial Ontario - Fishing Access Points. 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 Tower Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Tower Lake is about 24 ft (7 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2021 (an MNRF lake survey).
Anglers target splake, yellow perch, rock bass on Tower Lake.
Shoreline break is the top-rated area: a drop-off in about 23 ft of water that rates prime for splake in summer. The interactive chart above rates every spot for each species and season.
For splake, 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 Tower 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.
Edith L. 2 mi · Lonely Lake 2 mi · Peter Lake 2 mi · McCarrel Lake 3 mi · Iron Lake 3 mi · Cloudy Lake 3 mi · Diamond Lake 3 mi · Two Horse Lake 4 mi · Hart Lake 4 mi · Gordon Lake 4 mi · One Horse Lake 5 mi · Bass Lake 5 mi
See how Tower Lake stacks up: best yellow perch lakes in Ontario · best rock bass lakes in Ontario · best splake lakes in Ontario
More water nearby: Algoma District fishing maps (1026 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.