Ague Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Ague Lake, ON

Max 5 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

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 on this water are approximations. Never use for navigation. Always check local regulations.

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Recent catches at Ague 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 Ague Lake on the board.

Fishing Ague Lake: what the data says

120-acre lake in Bruce County, Ontario. The lake tops out around 5 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. The season-by-season read for each species follows, from the map's own numbers.

Ague Lake maps at 120 acres behind 1.9 miles of shoreline. Its 1.2 shoreline index means few bank features; the contours below do the pattern work. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Call it 0.8 mi long by 0.4 mi wide at the broadest reach. It sits in Bruce County. If the bite dies, Ira Lake is 2 mi to the southeast.

Brown Trout fishing at Ague Lake

In spring, brown trout run shallow here, mostly 1 to 5 ft. Summer keeps them at 2 to 5 ft, and they winter in 1 to 5 ft. Summer brown trout concentrate at Break off the point, a prime-rated drop-off around 2 ft. Fish it in after dark and early morning and you'll meet the bite. You won't need more than a spoon at the thermocline or a deep stickbait (night) most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 5 ft	dawn & dusk	Main-lake point (5 ft)	Stickbait off planer boards (shallow), Small spoon along mud lines
Summer	2 to 5 ft	night & dawn	Break off the point (2 ft)	Spoon at the thermocline, Deep stickbait (night)
Fall	1 to 5 ft	dusk & dawn	Main-lake point (5 ft)	Jerkbait over gravel, Casting spoon
Winter	1 to 5 ft	dawn	Break off the point (2 ft)	Jigging spoon, Small stickbait (slow)

Smallmouth Bass fishing at Ague Lake

When the water first warms, smallmouth bass slide up into 1 to 5 ft. There's no big seasonal slide here — summer means 2 to 5 ft, winter 2 to 5 ft. Start at Main-lake point. It's a point holding about 5 ft of water and rates prime come fall. The feeding windows run early morning and the evening. Keep a drop shot (goby/minnow) or a ned rig rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 5 ft	dawn & dusk	Main-lake point (5 ft)	Ned rig, Tube jig
Summer	2 to 5 ft	dawn & dusk	Break off the point (2 ft)	Drop shot (goby/minnow), Ned rig
Fall	2 to 5 ft	midday & dawn	Main-lake point (5 ft)	Jerkbait, Blade bait
Winter	2 to 5 ft	midday	Break off the point (2 ft)	Blade bait, Hair jig

Largemouth Bass fishing at Ague Lake

Come spring, look for largemouth 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. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. Best bite is early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 5 ft	dawn & dusk	Shallow bay flat (3 ft)	Spinnerbait, Chatterbait
Summer	2 to 5 ft	dawn & dusk	Shallow bay flat (3 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	1 to 5 ft	midday & dawn	Main-lake point (5 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	2 to 5 ft	midday	Break off the point (2 ft)	Blade bait, Jigging spoon

Notable structure

Ague Lake carries 5 mapped structure features, topping out (or rather bottoming out) at Main-lake point, about 5 ft down.

Main-lake point: point, around 5 ft
Deep basin: deep basin, around 4 ft
Shallow bay flat: weed flat, around 3 ft
Back-bay flat: weed flat, around 3 ft
Break off the point: drop-off, around 2 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Ague Lake?

Ague Lake is about 5 ft (2 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 Ague Lake?

Anglers target brown trout, smallmouth bass, largemouth bass on Ague Lake.

Where is the best fishing spot on Ague Lake?

Main-lake point is the top-rated area: a point in about 5 ft of water that rates prime for smallmouth bass in fall. The interactive chart above rates every spot for each species and season.

When is the best time to fish Ague Lake?

For brown trout, the summer bite is best in after dark and early morning. 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 Ague Lake?

Fishing on Ague 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

Ira Lake 2 mi · Lindsay L. 14 3 mi · Lindsay L. 12 3 mi · Miller Lake 3 mi · Otter Lake 6 mi · Britain Lake 6 mi · Georgian Bay - Bruce Peninsula & Tobermory 6 mi · Scugog Lake 8 mi · Crane Lake 9 mi · Warder Lake 9 mi · Marley Lake 10 mi · George Lake 10 mi

See how Ague Lake stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best brown trout lakes in Ontario

More water nearby: Bruce County fishing maps (60 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.