Lake depth chart
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92-acre lake in Parry Sound District, Ontario. The lake tops out around 20 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 1986 (an MNRF lake survey). What the data behind the map says about each species, season by season:
Lynch Lake maps at 92 acres behind 3 miles of shoreline — one island included. With a shoreline index of 2.3, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 98% of the surface — that's where the groceries are. Tip to tip the water measures near 0.7 mi with a 0.5-mi widest point. It sits in Parry Sound District. Its nearest charted neighbour, Otter Lake, is 1 mi to the north.
Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. Through summer count on 5 to 20 ft; the winter hold is 4 to 20 ft. Start at Break off the point. It's a drop-off holding about 8 ft of water and rates prime come winter. Prime time lands in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Break off the point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 5 to 20 ft | dawn & dusk | Break off the point (8 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 6 to 20 ft | dawn & dusk | Break off the point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 4 to 20 ft | dawn | Break off the point (8 ft) | Jigging spoon, Tube jig (white) |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 6 to 20 ft; cold water stacks them in 6 to 20 ft. Deep basin is the standout, a deep basin at roughly 20 ft, rated prime for fall yellow perch. Plan around early morning in the warm months. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 6 to 20 ft | dawn | Deep basin (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 6 to 20 ft | midday | Deep basin (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 6 to 20 ft | midday & dawn | Deep basin (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring smallmouth bass on Lynch Lake hold shallow, usually 3 to 12 ft. They move out to 6 to 20 ft in summer and finish the year down in 6 to 20 ft. Put Break off the point first on the milk run — a drop-off near 8 ft that grades prime for winter. The feeding windows run early morning and the evening. The summer box starts with a drop shot (goby/minnow) or a ned rig.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (1 ft) | Ned rig, Tube jig |
| Summer | 6 to 20 ft | dawn & dusk | Break off the point (8 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 6 to 20 ft | midday & dawn | Break off the point (8 ft) | Jerkbait, Blade bait |
| Winter | 6 to 20 ft | midday | Break off the point (8 ft) | Blade bait, Hair jig |
Spring puts pumpkinseed in skinny water — 1 to 8 ft is the zone. As the season builds they drop to 2 to 10 ft, wintering in 6 to 18 ft. Spring pumpkinseed concentrate at Shallow bay flat, a prime-rated weed flat around 1 ft. Warm-month bites cluster around the evening and early morning. A micro tube or a sponge spider (fly) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (1 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Deep basin (20 ft) | Tungsten ice jig + plastic, Tiny spoon |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 20 ft.
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 Lynch Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Lynch Lake is about 20 ft (6 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1986 (an MNRF lake survey).
Anglers target rainbow trout, yellow perch, smallmouth bass, pumpkinseed on Lynch Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for yellow perch in fall. The map above holds the full rated-spot list for every species and season.
For rainbow trout, 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 Lynch 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.
Otter Lake 1 mi · Laural Lake 2 mi · Paisley Lake 3 mi · Starvation Lake 4 mi · Forest Lake 4 mi · Widgeon Lake 5 mi · Little Weagan L. 5 mi · Iveys L. 6 mi · Bluesky Lake 6 mi · Twin Lakes 6 mi · Lake Bernard 6 mi · Long Lake 6 mi
See how Lynch Lake stacks up: best smallmouth bass lakes in Ontario · best rainbow trout lakes in Ontario · best yellow perch lakes in Ontario · best pumpkinseed lakes in Ontario
More water nearby: Parry Sound District fishing maps (441 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.