Lost L. Depth Map & Fishing Spots (Timiskaming District, ON)

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Lake depth chart

Lost L., ON

Max 50 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 Lost L.

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 Lost L. on the board.

Fishing Lost L.: what the data says

184-acre lake in Timiskaming District, Ontario. The lake tops out around 50 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. Every species below gets its seasonal read from the same numbers driving the chart.

On the chart, Lost L. draws 184 acres inside 3.2 miles of shoreline. The shoreline is moderately structured (index 1.7) — enough points and pockets to pattern. Littoral water — the productive band under ~15 ft — makes up 63% of this chart, as modeled. The basin spans about 1.1 mi end to end and 0.5 mi across at its widest. You'll find it in Timiskaming District. Closest neighbour on DepthScout: Wigwam L., 1 mi north of here.

Lake Whitefish fishing at Lost L.

Spring lake whitefish on Lost L. hold shallow, usually 15 to 45 ft. They move out to 15 to 50 ft in summer and finish the year down in 15 to 50 ft. Put Deep basin first on the milk run — a deep basin near 43 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a blade bait vertical or a small jigging spoon.

Season	Depth	Best window	Start at	Go-to baits
Spring	15 to 45 ft	midday & dawn	Break off the point (23 ft)	Small jig + waxworm, Blade bait (small)
Summer	15 to 50 ft	dawn	Deep basin (43 ft)	Blade bait vertical, Small jigging spoon
Fall	8 to 30 ft	dusk	Break off the point (23 ft)	Small spoon (gold), Jig + plastic larva
Winter	15 to 50 ft	midday & dawn	Deep basin (43 ft)	Jigging spoon + bead chain, Tungsten jig + waxie

Walleye fishing at Lost L.

When the water first warms, walleye slide up into 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 20 to 40 ft. If you only fish one area, make it Break off the point: a drop-off around 23 ft that scores prime in fall. In summer the feeding windows fall in the evening and early morning. Keep a crawler harness on bottom bouncer or a deep crankbait (trolled) rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	4 to 15 ft	dusk & dawn	Main-lake point (13 ft)	1/8 oz jig + minnow, Hair jig
Summer	15 to 35 ft	dusk & dawn	Break off the point (23 ft)	Crawler harness on bottom bouncer, Deep crankbait (trolled)
Fall	12 to 40 ft	dusk & night	Break off the point (23 ft)	Jigging rap, Jig + big minnow
Winter	20 to 40 ft	dusk & dawn	Deep basin (43 ft)	Jigging spoon + minnow head, Rattle bait

Smallmouth Bass fishing at Lost L.

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 20 to 45 ft for winter. The spot to know is Main-lake point, a point in about 13 ft of water that rates prime for smallmouth bass in fall. 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 (13 ft)	Ned rig, Tube jig
Summer	10 to 30 ft	dawn & dusk	Break off the point (23 ft)	Drop shot (goby/minnow), Ned rig
Fall	8 to 25 ft	midday & dawn	Main-lake point (13 ft)	Jerkbait, Blade bait
Winter	20 to 45 ft	midday	Break off the point (23 ft)	Blade bait, Hair jig

Rock Bass fishing at Lost L.

Spring rock bass on Lost L. hold shallow, usually 2 to 10 ft. They move out to 5 to 20 ft in summer and finish the year down in 12 to 30 ft. Put Main-lake point first on the milk run — a point near 13 ft that grades prime for summer. The feeding windows run the evening. The summer box starts with a ned rig (small) or a marabou jig.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	midday & dawn	open water	1/16 oz jig + grub, Small inline spinner
Summer	5 to 20 ft	dusk	Main-lake point (13 ft)	Ned rig (small), Marabou jig
Fall	8 to 22 ft	midday	Break off the point (23 ft)	Small tube jig, Inline spinner
Winter	12 to 30 ft	midday	Break off the point (23 ft)	Tungsten jig + plastic, Small spoon + spike

Notable structure

The chart marks 6 structure features on Lost L.; the deepest is Deep basin at about 43 ft.

Deep basin: deep basin, around 43 ft
Break off the point: drop-off, around 23 ft
Main-lake point: point, around 13 ft
Secondary point: point, around 13 ft
Shallow bay flat: weed flat, around 6 ft
Back-bay flat: weed flat, around 6 ft

Lost L. 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 Lost L. specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Lost L.?

Lost L. is about 50 ft (15 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 Lost L.?

Anglers target lake whitefish, walleye, smallmouth bass, rock bass on Lost L..

Where is the best fishing spot on Lost L.?

Deep basin is the top-rated area: a deep basin in about 43 ft of water that rates prime for lake whitefish in summer. The interactive chart above rates every spot for each species and season.

When is the best time to fish Lost L.?

For lake whitefish, the summer bite is best in 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 Lost L.?

Fishing on Lost L. 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

Wigwam L. 1 mi · Flatstone Lake 1 mi · Sigs Lake 1 mi · Calcite Lake 1 mi · Leta L. 2 mi · Leroy Lake 2 mi · Babs Lake 2 mi · Longpoint Lake 3 mi · Miller Lake 3 mi · Everett Lake 3 mi · Chown L. 15 4 mi · Mooseheart Lake 5 mi

See how Lost L. stacks up: best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best lake whitefish lakes in Ontario · best rock bass lakes in Ontario

More water nearby: Timiskaming District fishing maps (515 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.