Blue Lake Depth Map & Fishing Spots (Parry Sound District, ON)

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Lake depth chart

Blue Lake, ON

Max 37 ft

Today's read

Where to start

Hopper & ant season (windward banks) window is on — see the hatch outlook

Hatch outlook

Hopper & ant season (windward banks)Active window

Typical here: Jul 1 – Sep 15 · hoppers peak July–August; winged-ant falls show up on warm humid afternoons — a wind event, not a hatch

adultwarm, breezy afternoons, roughly 1–5pm — slap the imitation down hard — the splat is the trigger — then wait; count to three after the rise before setting

Work the windward bank on breezy summer afternoons — that's where the food is. Casting-bubble-and-hopper is the direct translation; otherwise run small topwaters and inline spinners tight along the grass edges and blowdown banks in the afternoon warmth.

The event happens over windward grassy banks, overhanging brush and blowdowns — wherever the breeze dumps the bugs

Fall shiner runActive window

Typical here: Sep 1 – Oct 31 · same push on the Ontario side — Simcoe's shiners migrate shallow as the water cools, and the predators ride with them

adultdaylight for the jig bite; after dark the shiners stack under dock lights with walleyes and pike mixed right in — follow the bait, not the spot — millions of shiners move together and the predators ride with them; silver profile and flash matter

Concentrates hard but travels — the school (and the walleyes under it) can be off a river mouth one week and miles upriver the next.

Jig-and-minnow is the event's signature — a frozen emerald shiner on a 1/4 oz jig drifted along the run; silver jerkbaits and trolled crankbaits take the roaming fish; blade baits under the schools.

The event happens over river mouths and the first miles upriver, warming shallow shorelines, and rocky points where the displaced bait stacks

Next on this water

Spring bug season (brook trout lakes) · forageApr 25 – Jun 30 · in ~8 months

Hex (giant mayfly) · mayflyMay 25 – Aug 10 · in ~9 months

June mayfly hatch (walleye lakes) · mayflyJun 1 – Aug 10 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

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Recent catches at Blue Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Blue Lake on the board.

Fishing Blue Lake: what the data says

11-acre lake in Parry Sound District, Ontario. The lake tops out around 37 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 1974, a decades-old survey (an MNRF lake survey). What the data behind the map says about each species, season by season:

Drawn out, this is 11 acres of water rimmed by 0.8 miles of bank. The shoreline is moderately structured (index 1.7) — enough points and pockets to pattern. The shallow band under 15 ft claims about 98% of the surface — that's where the groceries are. You'll find it in Parry Sound District. Closest neighbour on DepthScout: Otter L., 1 mi south of here.

Brook Trout fishing at Blue Lake

Spring puts brook trout in skinny water — 2 to 15 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 3 to 20 ft. Summer brook trout concentrate at Deep basin, a prime-rated deep basin around 30 ft. Warm-month bites cluster around early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (1 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Deep basin (30 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (1 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Break off the point (10 ft)	Small jigging spoon, Tungsten jig + plastic

Smallmouth Bass fishing at Blue Lake

The spring pattern is a shallow one: smallmouth bass in 3 to 12 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 11 to 37 ft for winter. The spot to know is Break off the point, a drop-off in about 10 ft of water that rates prime for smallmouth bass in winter. Plan around early morning and the evening in the warm months. Summer baits: a drop shot (goby/minnow) or a ned rig gets it done.

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	10 to 30 ft	dawn & dusk	Break off the point (10 ft)	Drop shot (goby/minnow), Ned rig
Fall	8 to 25 ft	midday & dawn	Break off the point (10 ft)	Jerkbait, Blade bait
Winter	11 to 37 ft	midday	Break off the point (10 ft)	Blade bait, Hair jig

Notable structure

The chart marks 3 structure features on Blue Lake; the deepest is Deep basin at about 30 ft.

Deep basin: deep basin, around 30 ft
Break off the point: drop-off, around 10 ft
Main-lake point: point, around 1 ft

Blue Lake fishing regulations

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 Blue Lake specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Blue Lake?

Blue Lake is about 37 ft (11 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1974, a decades-old survey (an MNRF lake survey).

What fish are in Blue Lake?

Anglers target brook trout, smallmouth bass on Blue Lake.

Where is the best fishing spot on Blue Lake?

Break off the point is the top-rated area: a drop-off in about 10 ft of water that rates prime for smallmouth bass in winter. The map above holds the full rated-spot list for every species and season.

When is the best time to fish Blue Lake?

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.

What are the fishing regulations for Blue Lake?

Fishing on Blue 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.

Nearby waters

Otter L. 1 mi · Cadge Road L. 1 mi · Clear Lake 2 mi · Whitestone Lake 3 mi · Taylor Lake 3 mi · Snakeskin Lake 4 mi · Wilson Lake 4 mi · Gordon Lake 4 mi · Fairholme Lake 4 mi · Quinn Lake 4 mi · Boyd Lake 5 mi · Shawanaga Lake 6 mi

See how Blue Lake stacks up: best smallmouth bass lakes in Ontario · best brook trout 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.