Sirola Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Sirola Lake, ON

Max 62 ft

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Where to start

Fall shiner run window is on — see the hatch outlook

Hatch outlook

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

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 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 Sirola 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 Sirola Lake on the board.

Fishing Sirola Lake: what the data says

92-acre lake in Timiskaming District, Ontario. The lake tops out around 62 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. What follows comes from the same scoring engine that paints the spots above.

Sirola Lake maps at 91 acres behind 2.2 miles of shoreline. A middling shoreline index (1.7) gives it some bays to work without being a maze. 78% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Tip to tip the water measures near 0.8 mi with a 0.4-mi widest point. Timiskaming District claims this one. Its nearest charted neighbour, Weary Lake, is 1 mi to the east.

Northern Pike fishing at Sirola Lake

Early season northern pike use the shallows, holding in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Put Shallow bay flat first on the milk run — a weed flat near 1 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (1 ft)	#5 inline spinner, Spoon (red/white)
Summer	8 to 20 ft	dawn & dusk	Shallow bay flat (1 ft)	Bucktail, Weedless spoon over cabbage
Fall	6 to 18 ft	midday & dawn	Shallow bay flat (1 ft)	Big rubber (Bull Dawg style), Husky-style jerkbait
Winter	5 to 15 ft	midday	Shallow bay flat (1 ft)	Tip-ups, Large jigging spoon

Notable structure

Sirola Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 60 ft down.

Deep basin: deep basin, around 60 ft
Main-lake point: point, around 1 ft
Secondary point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft
Break off the point: drop-off, around 1 ft

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

Check the official Ontario fishing regulations →

Common questions

How deep is Sirola Lake?

Sirola Lake is about 62 ft (19 m) deep at its deepest point. 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.

What fish are in Sirola Lake?

Anglers target northern pike on Sirola Lake.

Where is the best fishing spot on Sirola Lake?

Shallow bay flat is the top-rated area: a weed flat in about 1 ft of water that rates prime for northern pike in spring. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Sirola Lake?

For northern pike, 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 Sirola Lake?

Fishing on Sirola 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

Weary Lake 1 mi · Wood Lake 1 mi · Bess Lake 1 mi · Rhyolite Lake 1 mi · Mavis Lake 1 mi · Holbrooke Lake 2 mi · Strange Lake 2 mi · Dumbell Lake 2 mi · Tory Lake 2 mi · Midlothian Lake 3 mi · Hutt L. 3 mi · Ward Lake 3 mi

See how Sirola Lake stacks up: best northern pike lakes in Ontario

More water nearby: Timiskaming District fishing maps (515 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.