Shared by DepthScout anglers. Exact spots stay private, always.
74-acre lake near Ontario. The lake tops out around 32 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. What follows comes from the same scoring engine that paints the spots above.
In spring, lake whitefish run shallow here, mostly 10 to 32 ft. Summer fish stay in 10 to 32 ft, and winter fish hold in 10 to 32 ft. If you only fish one area, make it Deep basin: a deep basin around 27 ft that scores prime in summer. Best bite is early morning. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 32 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 10 to 32 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 10 to 32 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, walleye run shallow here, mostly 4 to 15 ft. By summer they slide out to 10 to 32 ft, and by winter most fish are in 10 to 32 ft. Break off the point is the standout, a drop-off at roughly 14 ft, rated prime for fall walleye. In summer the feeding windows fall in the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 10 to 32 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 10 to 32 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 10 to 32 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Spring northern pike on Mary Lake hold shallow, usually 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
How deep is Mary Lake?
Mary Lake is about 32 ft 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 Mary Lake?
Anglers target walleye, northern pike, lake whitefish on Mary Lake.
Where is the best fishing spot on Mary Lake?
Deep basin is the top-rated area: a deep basin in about 27 ft of water that rates prime for lake whitefish in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Mary Lake?
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.
Two Island Lake · Halfway Lake · Island Lake · Warnica Lake · Wartman Lake · Surprise Lake
See how Mary Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best lake whitefish lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.