Adamson Lake Depth Map & Fishing Spots (ON)

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Lake depth chart

Adamson Lake, ON

Max 26 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 Adamson Lake

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Fishing Adamson Lake: what the data says

86-acre lake in Timiskaming District, Ontario. The lake tops out around 26 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 rest of this page walks each species through its year, using the map's own scoring.

Traced from the shoreline, Adamson Lake runs 86 acres with 1.9 miles of edge. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. End to end it runs roughly 0.7 mi, about 0.4 mi across. The water lies in Timiskaming District. The nearest mapped water is Raven lake, 1 mi to the northwest.

Yellow Perch fishing at Adamson Lake

Spring yellow perch on Adamson Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 8 to 26 ft, and by winter most fish are in 8 to 26 ft. The chart's best answer is Deep basin — deep basin, 20 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 (1 ft)	Small jig + curly tail, Perch-pattern micro crank
Summer	8 to 26 ft	dawn	Deep basin (20 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	8 to 26 ft	midday	Deep basin (20 ft)	Jigging spoon (small), Perch rig / spreader
Winter	8 to 26 ft	midday & dawn	Deep basin (20 ft)	Tungsten jig + spikes, Rattle spoon (small)

Notable structure

Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 20 ft.

Deep basin: deep basin, around 20 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

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

Check the official Ontario fishing regulations →

Common questions

How deep is Adamson Lake?

Adamson Lake is about 26 ft (8 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 Adamson Lake?

Anglers target yellow perch on Adamson Lake.

Where is the best fishing spot on Adamson Lake?

Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for yellow perch in fall. Open the map above to see every rated spot for each species and season.

When is the best time to fish Adamson Lake?

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 Adamson Lake?

Fishing on Adamson 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

Raven lake 1 mi, ON/QC · Corset Lake 3 mi · Boundary L.s 3 mi · Ward Lake 3 mi · Big Moose Lake 6 mi · Larder Lake 6 mi · Costello Lake 6 mi · Barber Lake 7 mi · Tournene Lake 7 mi · Bear Lake 8 mi · Blackwell Lake 8 mi · Ginn Lake 8 mi

See how Adamson Lake stacks up: best yellow perch 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.