Little Harburn Lake Depth Map & Fishing Spots (ON)

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 interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

Loading depth chart…

Recent catches at Little Harburn 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 Little Harburn Lake on the board.

Fishing Little Harburn Lake: what the data says

37-acre lake in Haliburton County, Ontario. The lake tops out around 5 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. Every species below gets its seasonal read from the same numbers driving the chart.

Traced from the shoreline, Little Harburn Lake runs 37 acres with 1.4 miles of edge — one island included. Index 1.6 on the shoreline: a few honest points and pockets, nothing labyrinthine. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. End to end it runs roughly 0.4 mi, about 0.3 mi across. You'll find it in Haliburton County. For a second option, Harburn Lake lies 1 mi south.

Brook Trout fishing at Little Harburn Lake

Start shallow in spring: brook trout sit in 1 to 5 ft that time of year. They don't go far with the seasons — 2 to 5 ft covers summer, 1 to 5 ft covers winter. The spot to know is Deep basin, a deep basin in about 5 ft of water that rates prime for brook trout in summer. Warm-month bites cluster around early morning and the evening. Throw a small spoon fished deep or a trolled lake-clear wobbler + worm until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 5 ft	dawn & dusk	Main-lake point (3 ft)	Small inline spinner (gold), Tiny spoon
Summer	2 to 5 ft	dawn & dusk	Deep basin (5 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	1 to 5 ft	midday & dawn	Main-lake point (3 ft)	Small spoon (orange), Spinner
Winter	1 to 5 ft	dawn	Deep basin (5 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Little Harburn Lake carries 5 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 5 ft down.

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

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

Check the official Ontario fishing regulations →

Common questions

How deep is Little Harburn Lake?

Little Harburn Lake is about 5 ft (2 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.

What fish are in Little Harburn Lake?

Anglers target brook trout on Little Harburn Lake.

Where is the best fishing spot on Little Harburn Lake?

Deep basin is the top-rated area: a deep basin in about 5 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 Little Harburn 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 Little Harburn Lake?

Fishing on Little Harburn 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

Harburn Lake 1 mi · Ross Lake 1 mi · Morrow Lake 1 mi · Spider Lake 2 mi · North Lake 3 mi · Dog Lake 3 mi · Oblong Lake 3 mi · Green Canoe Lake 3 mi · Haliburton Lake 3 mi · Marsden Lake 3 mi · Duck Lake 3 mi · Eyre Lake 4 mi

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

More water nearby: Haliburton County fishing maps (295 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.