Lake depth chart
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Recent public catches load as you reach this section.
63-acre lake in Simcoe County, Ontario. The lake tops out around 5 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 a transect sounding survey by the Ontario MNRF. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 64 acres wrapped in 2.5 miles of bank. With a shoreline index of 2.3, this water is all arms and coves — edge habitat well beyond its acreage. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Tip to tip the water measures near 0.8 mi with a 0.4-mi widest point. Simcoe County claims this one. If the bite dies, Marl Lake is 2 mi to the north.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official Ontario MNRF Fish ON-Line record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
When the water first warms, splake slide up into 1 to 5 ft. There's no big seasonal slide here — summer means 2 to 5 ft, winter 1 to 5 ft. Start at Break off the point. It's a drop-off holding about 2 ft of water and rates good come summer. The feeding windows run early morning and the evening. Keep a trolled spoon at the thermocline or a white tube jig (deep) rigged through the warm months.
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 | 1 to 5 ft chart-limited; documented 5 to 25 ft | dawn & dusk | Main-lake point (5 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 2 to 5 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Break off the point (2 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 1 to 5 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (5 ft) | Casting spoon, Jerkbait |
| Winter | 1 to 5 ft chart-limited; documented 10 to 45 ft | dawn | Break off the point (2 ft) | Jigging spoon tipped with minnow head, Small white tube |
Early season rainbow trout use the shallows, holding in 1 to 5 ft. Even in summer they hold at 1 to 5 ft; winter keeps them in 1 to 5 ft. The chart's best answer is Break off the point — drop-off, 2 ft, prime for winter. Best bite is early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon 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 | 1 to 5 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Main-lake point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 1 to 5 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (2 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 1 to 5 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (5 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 1 to 5 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (2 ft) | Jigging spoon, Tube jig (white) |
Spring puts walleye in skinny water — 1 to 5 ft is the zone. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. Fall walleye concentrate at Break off the point, a prime-rated drop-off around 2 ft. Warm-month bites cluster around the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) 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 | 1 to 5 ft chart-limited; documented 4 to 15 ft | dusk & dawn | Main-lake point (5 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 2 to 5 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (2 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 2 to 5 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (2 ft) | Jigging rap, Jig + big minnow |
| Winter | 2 to 5 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (5 ft) | Jigging spoon + minnow head, Rattle bait |
Start shallow in spring: yellow perch sit in 1 to 5 ft that time of year. They don't go far with the seasons — 2 to 5 ft covers summer, 2 to 5 ft covers winter. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small spoon tipped with worm 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 | 1 to 5 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 2 to 5 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (5 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 2 to 5 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (5 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 2 to 5 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (5 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Come spring, look for northern pike tight to the bank in 1 to 5 ft. Through summer count on 2 to 5 ft; the winter hold is 2 to 5 ft. Start at Shallow bay flat. It's a weed flat holding about 3 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage 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 | 1 to 5 ft chart-limited; documented 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 2 to 5 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (3 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 2 to 5 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (3 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 2 to 5 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
Come spring, look for smallmouth bass tight to the bank in 1 to 5 ft. Through summer count on 2 to 5 ft; the winter hold is 2 to 5 ft. Start at Main-lake point. It's a point holding about 5 ft of water and rates prime come fall. Prime time lands in early morning and the evening. A drop shot (goby/minnow) or a ned rig 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 | 1 to 5 ft chart-limited; documented 3 to 12 ft | dawn & dusk | Main-lake point (5 ft) | Ned rig, Tube jig |
| Summer | 2 to 5 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (2 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 2 to 5 ft chart-limited; documented 8 to 25 ft | midday & dawn | Main-lake point (5 ft) | Jerkbait, Blade bait |
| Winter | 2 to 5 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (2 ft) | Blade bait, Hair jig |
Jacks Lake also holds largemouth bass (2 to 5 ft in summer), rock bass (1 to 5 ft in summer), crappie (2 to 5 ft in summer), pumpkinseed (1 to 5 ft in summer), brown bullhead (1 to 5 ft in summer), channel catfish (2 to 5 ft in summer), common carp (1 to 5 ft in summer), bowfin (1 to 5 ft in summer), burbot (2 to 5 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 5 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 Jacks Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Jacks Lake is about 5 ft (2 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target splake, rainbow trout, walleye, yellow perch, northern pike, smallmouth bass, largemouth bass, rock bass, crappie, pumpkinseed, brown bullhead, channel catfish, common carp, bowfin, burbot on Jacks Lake.
Break off the point is the top-rated area: a drop-off in about 2 ft of water that rates good for splake in summer. The map above holds the full rated-spot list for every 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 Jacks 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.
Marl Lake 2 mi · New Lowell Re. 9 mi · Orr Lake 13 mi · Edward Lake 15 mi · Little Lake 16 mi · Georgian Bay - Nottawasaga Bay 18 mi · Little Lake 18 mi · Brewsters Lake 18 mi · Georgian Bay - Midland Bay 20 mi · Georgian Bay - Sturgeon Bay 21 mi · St. Andrews Lake 21 mi · Georgian Bay - Penetanguishene Bay 22 mi
See how Jacks Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best northern pike lakes in Ontario
More water nearby: Simcoe County fishing maps (31 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.