Guilfoyle L. 50 Depth Map & Fishing Spots (ON)

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Lake depth chart

Guilfoyle L. 50, ON

Max 17 ft

Today's read

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

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 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.

Depth · ft

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Recent catches at Guilfoyle L. 50

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Fishing Guilfoyle L. 50: what the data says

27-acre lake in Cochrane District, Ontario. The lake tops out around 17 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 a transect sounding survey by the Ontario MNRF. The season-by-season read for each species follows, from the map's own numbers.

Traced from the shoreline, Guilfoyle L. 50 runs 27 acres with 1.1 miles of edge. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. The basin spans about 0.4 mi end to end and 0.3 mi across at its widest. The water lies in Cochrane District. For a second option, Guilfoyle L. 49 lies 0 mi southwest.

Yellow Perch fishing at Guilfoyle L. 50

Spring yellow perch on Guilfoyle L. 50 hold shallow, usually 3 to 12 ft. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. The chart's best answer is Deep basin — deep basin, 15 ft, prime for fall. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	midday & dawn	Shallow bay flat (2 ft)	Small jig + curly tail, Perch-pattern micro crank
Summer	5 to 17 ft	dawn	Deep basin (15 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	5 to 17 ft	midday	Deep basin (15 ft)	Jigging spoon (small), Perch rig / spreader
Winter	5 to 17 ft	midday & dawn	Deep basin (15 ft)	Tungsten jig + spikes, Rattle spoon (small)

Notable structure

Guilfoyle L. 50 carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 15 ft down.

Deep basin: deep basin, around 15 ft
Break off the point: drop-off, around 5 ft
Main-lake point: point, around 2 ft
Shallow bay flat: weed flat, around 2 ft

Guilfoyle L. 50 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 Guilfoyle L. 50 specifically, so confirm the current rules before you fish.

Check the official Ontario fishing regulations →

Common questions

How deep is Guilfoyle L. 50?

Guilfoyle L. 50 is about 17 ft (5 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.

What fish are in Guilfoyle L. 50?

Anglers target yellow perch on Guilfoyle L. 50.

Where is the best fishing spot on Guilfoyle L. 50?

Deep basin is the top-rated area: a deep basin in about 15 ft of water that rates prime for yellow perch in fall. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Guilfoyle L. 50?

For yellow perch, 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 Guilfoyle L. 50?

Fishing on Guilfoyle L. 50 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

Guilfoyle L. 49 0 mi · Guilfoyle Lake 44 1 mi · Dent L. 1 mi · Guilfoyle No. 43 1 mi · Guilfoyle L.37 1 mi · Bennet Lake 2 mi · Guilfoyle L. 30 2 mi · Guilfoyle Lake 64 2 mi · Guilfoyle Lake 27 2 mi · Guilfoyle L. 94 3 mi · Guilfoyle No. 87 3 mi · Guilfoyle Lake 23 3 mi

See how Guilfoyle L. 50 stacks up: best yellow perch 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.