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96-acre pond in Muskoka District Municipality, Ontario. The lake tops out around 13 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 1984 (a transect sounding survey). Every species below gets its seasonal read from the same numbers driving the chart.
The drawn water covers 97 acres wrapped in 4.8 miles of bank — 4 islands included. An index of 3.5 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Figure 1.5 mi of water from one end to the other, 0.4 mi at the beam. It sits in Muskoka District Municipality. Its nearest charted neighbour, Nelson Lake, is 1 mi to the south.
When the water first warms, brook trout slide up into 2 to 13 ft. There's no big seasonal slide here — summer means 4 to 13 ft, winter 2 to 13 ft. If you only fish one area, make it Deep basin: a deep basin around 13 ft that scores prime in summer. In summer the feeding windows fall in early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm 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 | 2 to 13 ft chart-limited; documented 2 to 15 ft | dawn & dusk | Main-lake point (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 4 to 13 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (13 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 13 ft chart-limited; documented 2 to 15 ft | midday & dawn | Main-lake point (3 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 13 ft chart-limited; documented 3 to 20 ft | dawn | Deep basin (13 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring puts yellow perch in skinny water — 3 to 12 ft is the zone. Warm water sends them out to 4 to 13 ft; cold water stacks them in 4 to 13 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring 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.
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 (4 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 4 to 13 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (13 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 4 to 13 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (13 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 4 to 13 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (13 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Spring smallmouth bass on Finlayson Pond #420 hold shallow, usually 3 to 12 ft. They move out to 4 to 13 ft in summer and finish the year down in 4 to 13 ft. Put Break off the point first on the milk run — a drop-off near 4 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.
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 (3 ft) | Ned rig, Tube jig |
| Summer | 4 to 13 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Break off the point (4 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 4 to 13 ft chart-limited; documented 8 to 25 ft | midday & dawn | Break off the point (4 ft) | Jerkbait, Blade bait |
| Winter | 4 to 13 ft chart-limited; documented 20 to 45 ft | midday | Break off the point (4 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 4 to 13 ft. Spring pumpkinseed concentrate at Shallow bay flat, a prime-rated weed flat around 4 ft. Warm-month bites cluster around the evening and early morning. A micro tube or a sponge spider (fly) 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 8 ft | midday & dusk | Shallow bay flat (4 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 13 ft chart-limited; documented 4 to 14 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 4 to 13 ft chart-limited; documented 6 to 18 ft | dawn | Shallow bay flat (4 ft) | Tungsten ice jig + plastic, Tiny spoon |
Spring brown bullhead on Finlayson Pond #420 hold shallow, usually 2 to 8 ft. By summer they slide out to 3 to 12 ft, and by winter most fish are in 4 to 13 ft. The chart's best answer is Deep basin — deep basin, 13 ft, prime for winter. Prime time lands in after dark and the evening.
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 | 2 to 8 ft | dusk & night | Shallow bay flat (4 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (4 ft) | |
| Fall | 4 to 13 ft chart-limited; documented 5 to 15 ft | dusk | Deep basin (13 ft) | |
| Winter | 4 to 13 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (13 ft) |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 13 ft.
Access data: Geospatial Ontario - Fishing Access Points; Government of Ontario - MNR Unpatented Crown Land Shoreline; Government of Ontario - MNR Unpatented Crown Land Shoreline. 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 Finlayson Pond #420 specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Finlayson Pond #420 is about 13 ft (4 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1984 (a transect sounding survey).
Anglers target brook trout, yellow perch, smallmouth bass, pumpkinseed, brown bullhead on Finlayson Pond #420. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species Ontario's MNRF recorded in the nearest surveyed lakes, filtered to this lake's depth and habitat.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for yellow perch in spring. The map above holds the full rated-spot list for every species and season.
For brook 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 Finlayson Pond #420 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.
Nelson Lake 1 mi · Marion Lake 2 mi · Little Nelson Lake 2 mi · Greenish Lake 3 mi · Upper Centre Nolan L. 3 mi · South Nelson Lake 3 mi · North Dotty Lake 3 mi · Tasso Lake 4 mi · Maggie Lake 4 mi · Doughnut Lake 4 mi · Little Hungry Lake 4 mi · Dotty Lake 4 mi
See how Finlayson Pond #420 stacks up: best smallmouth bass lakes in Ontario · best yellow perch lakes in Ontario · best brook trout lakes in Ontario · best pumpkinseed lakes in Ontario
More water nearby: Muskoka District Municipality fishing maps (276 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.