Shared by DepthScout anglers. Exact spots stay private, always.
1,025-acre lake near Ontario. The lake tops out around 5 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.
Start shallow in spring: lake whitefish sit in 2 to 5 ft that time of year. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. Deep basin is the standout, a deep basin at roughly 4 ft, rated prime for summer lake whitefish. Plan around early morning in the warm months. A blade bait vertical or a small jigging spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 5 ft | midday & dawn | Small jig + waxworm, Blade bait (small) |
| Summer | 2 to 5 ft | dawn | Blade bait vertical, Small jigging spoon |
| Fall | 1 to 5 ft | dusk | Small spoon (gold), Jig + plastic larva |
| Winter | 2 to 5 ft | midday & dawn | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, walleye run shallow here, mostly 1 to 5 ft. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. Break off the point is the standout, a drop-off at roughly 2 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 | 1 to 5 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 2 to 5 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 2 to 5 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 2 to 5 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Start shallow in spring: sauger sit in 1 to 5 ft that time of year. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. The spot to know is Deep basin, a deep basin in about 4 ft of water that rates prime for sauger in winter. In summer the feeding windows fall in early morning and the evening. Tie on a bottom bouncer + crawler or a 3-way rig with stickbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | dawn & dusk | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 2 to 5 ft | dawn & dusk | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 2 to 5 ft | dusk & dawn | Jig + big minnow, Blade bait |
| Winter | 2 to 5 ft | dusk | Heavy jigging spoon, Jig + minnow (vertical) |
Start shallow in spring: yellow perch sit in 1 to 5 ft that time of year. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. In summer the feeding windows fall in early morning. A drop-shot micro plastics or a small spoon tipped with worm covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 2 to 5 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 2 to 5 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 2 to 5 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on McDiarmid Lake hold shallow, usually 1 to 5 ft. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 2 to 5 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 2 to 5 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 2 to 5 ft | midday | Tip-ups, Large jigging spoon |
Spring rock bass on McDiarmid Lake hold shallow, usually 1 to 5 ft. Summer fish stay in 1 to 5 ft, and winter fish hold in 2 to 5 ft. Main-lake point is the standout, a point at roughly 5 ft, rated prime for summer rock bass. Best bite is the evening. Summer baits: a ned rig (small) or a marabou jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | midday & dawn | 1/16 oz jig + grub, Small inline spinner |
| Summer | 1 to 5 ft | dusk | Ned rig (small), Marabou jig |
| Fall | 2 to 5 ft | midday | Small tube jig, Inline spinner |
| Winter | 2 to 5 ft | midday | Tungsten jig + plastic, Small spoon + spike |
McDiarmid Lake also holds brown bullhead (1 to 5 ft in summer). Pick any of them on the map above for rated spots and bait picks.
How deep is McDiarmid Lake?
McDiarmid Lake is about 5 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 McDiarmid Lake?
Anglers target walleye, sauger, northern pike, yellow perch, lake whitefish, rock bass, brown bullhead on McDiarmid Lake.
Where is the best fishing spot on McDiarmid Lake?
Deep basin is the top-rated area: a deep basin in about 4 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 McDiarmid 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.
Clarice Lake · Death Lake · Webster Lake · Trollope Lake · Pontiac Lake · Kelso Lake
See how McDiarmid Lake stacks up: best walleye lakes in Ontario · best sauger lakes in Ontario · best northern pike lakes in Ontario · best yellow perch lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.