Keller Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Keller Lake, ON

Max 7 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 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 Keller 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 Keller Lake on the board.

Fishing Keller Lake: what the data says

7-acre lake in Cochrane District, Ontario. The lake tops out around 7 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 2003 (an MNRF lake survey). Below is the species-by-species picture, pulled from the same data the map uses.

On the chart, Keller Lake draws 7 acres inside 0.4 miles of shoreline. Its 1.1 shoreline index means few bank features; the contours below do the pattern work. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. The water lies in Cochrane District. For a second option, McCulloch Lake lies 2 mi southwest.

Brook Trout fishing at Keller Lake

Spring puts brook trout in skinny water — 1 to 7 ft is the zone. Summer fish stay in 2 to 7 ft, and winter fish hold in 1 to 7 ft. Deep basin is the standout, a deep basin at roughly 6 ft, rated prime for summer brook trout. Plan around early morning and the evening in the warm months. 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	1 to 7 ft	dawn & dusk	Shallow bay flat (2 ft)	Small inline spinner (gold), Tiny spoon
Summer	2 to 7 ft	dawn & dusk	Deep basin (6 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	1 to 7 ft	midday & dawn	open water	Small spoon (orange), Spinner
Winter	1 to 7 ft	dawn	Deep basin (6 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Keller Lake carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 6 ft down.

Deep basin: deep basin, around 6 ft
Shoreline break: drop-off, around 4 ft
Shallow bay flat: weed flat, around 2 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Keller Lake?

Keller Lake is about 7 ft (2 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 2003 (an MNRF lake survey).

What fish are in Keller Lake?

Anglers target brook trout on Keller Lake.

Where is the best fishing spot on Keller Lake?

Deep basin is the top-rated area: a deep basin in about 6 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 Keller 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 Keller Lake?

Fishing on Keller 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

McCulloch Lake 2 mi · Perry Lake 2 mi · Hewitt Lake 2 mi · Monahan Lake 3 mi · Knight Lake 3 mi · Emens Lake 3 mi · Pike Lake 3 mi · Collins Lake 4 mi · Halfway Lake 4 mi · Clermont Lake 4 mi · Garrison L. 4 mi · Fade Lake 4 mi

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

More water nearby: Cochrane District fishing maps (673 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.