Olsen L. 13 Depth Map & Fishing Spots (ON)

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Lake depth chart

Olsen L. 13, ON

Max 44 ft

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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 Olsen L. 13

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 Olsen L. 13 on the board.

Fishing Olsen L. 13: what the data says

32-acre lake in Algoma District, Ontario. The lake tops out around 44 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. Below is the species-by-species picture, pulled from the same data the map uses.

Traced from the shoreline, Olsen L. 13 runs 32 acres with 1.1 miles of edge. Nearly circular (index 1.4), so the story is the bottom, not the bank. 30% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. Tip to tip the water measures near 0.3 mi with a 0.2-mi widest point. The water lies in Algoma District. For a second option, Meenach Lake lies 1 mi east.

Brook Trout fishing at Olsen L. 13

Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Warm water sends them out to 10 to 30 ft; cold water stacks them in 3 to 20 ft. Top water on the chart: Break off the point, a drop-off in the 20 ft range, prime in summer. Fish it in early morning and the evening and you'll meet the bite. 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	2 to 15 ft	dawn & dusk	Main-lake point (11 ft)	Small inline spinner (gold), Tiny spoon
Summer	10 to 30 ft	dawn & dusk	Break off the point (20 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (11 ft)	Small spoon (orange), Spinner
Winter	3 to 20 ft	dawn	Break off the point (20 ft)	Small jigging spoon, Tungsten jig + plastic

Notable structure

Count 5 structure marks on this chart. The deepest, Deep basin, sits near 37 ft.

Deep basin: deep basin, around 37 ft
Break off the point: drop-off, around 20 ft
Main-lake point: point, around 11 ft
Shallow bay flat: weed flat, around 5 ft
Back-bay flat: weed flat, around 5 ft

Olsen L. 13 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 Olsen L. 13 specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Olsen L. 13?

Olsen L. 13 is about 44 ft (13 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 Olsen L. 13?

Anglers target brook trout on Olsen L. 13.

Where is the best fishing spot on Olsen L. 13?

Break off the point is the top-rated area: a drop-off in about 20 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 Olsen L. 13?

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 Olsen L. 13?

Fishing on Olsen L. 13 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

Meenach Lake 1 mi · Quintet Lakes 3 mi · McCollough Lake 3 mi · Spruce Lake 4 mi · Adelaide Lake 4 mi · Olsen L. 27 4 mi · McGovern Lake 5 mi · Mongoose Lake 5 mi · Bone Lake 5 mi · Dick Lake 6 mi · Carpenter Lake 6 mi · Wart Lake 7 mi

See how Olsen L. 13 stacks up: best brook trout lakes in Ontario

More water nearby: Algoma District fishing maps (1026 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.