McGill Lake Depth Map & Fishing Spots (Grey County, ON)

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Lake depth chart

McGill Lake, ON

Max 38 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

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

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

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Recent catches at McGill 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 McGill Lake on the board.

Fishing McGill Lake: what the data says

24-acre lake in Grey County, Ontario. The lake tops out around 38 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. The season-by-season read for each species follows, from the map's own numbers.

On the chart, McGill Lake draws 24 acres inside 1.1 miles of shoreline. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. Roughly 45% of the water is 15 ft or less as modeled, the band where the food chain lives. End to end it runs roughly 0.4 mi, about 0.2 mi across. The water lies in Grey County. For a second option, Menarys L. lies 6 mi east.

Brook Trout fishing at McGill Lake

In spring, brook trout run shallow here, mostly 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. Summer brook trout concentrate at Break off the point, a prime-rated drop-off around 17 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (10 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Break off the point (17 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (10 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Break off the point (17 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Count 4 structure marks on this chart. The deepest, Deep basin, sits near 32 ft.

Deep basin: deep basin, around 32 ft
Break off the point: drop-off, around 17 ft
Main-lake point: point, around 10 ft
Shallow bay flat: weed flat, around 5 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is McGill Lake?

McGill Lake is about 38 ft (12 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.

What fish are in McGill Lake?

Anglers target brook trout on McGill Lake.

Where is the best fishing spot on McGill Lake?

Break off the point is the top-rated area: a drop-off in about 17 ft of water that rates prime for brook trout in summer. The map above holds the full rated-spot list for every species and season.

When is the best time to fish McGill 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 McGill Lake?

Fishing on McGill 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

Menarys L. 6 mi · Sheppard Lake 6 mi · Hines Lake 6 mi · Minkes Lake 9 mi · McCullough Lake 10 mi · Negro Lakes 10 mi · Sullivan L. D1 11 mi · Black's Lake 11 mi · Harrison Lake 12 mi · Sullivan L. E 12 mi · Bells Lake 13 mi · Sullivan L. F 13 mi

See how McGill Lake stacks up: best brook trout lakes in Ontario

More water nearby: Grey County fishing maps (47 charts). Browse all Ontario fishing maps or see every water on DepthScout. 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.