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Rating depth structure for walleye.
Shared by DepthScout anglers. Exact spots stay private, always.
1,318-acre lake near Flin Flon. The lake tops out around 23 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. Here is how the season plays out for each species, straight from the data behind the map.
Drawn out, this is 1,314 acres of water rimmed by 22 miles of bank — 12 islands included. An index of 4.3 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. 82% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. End to end it runs roughly 3.8 mi, about 2.3 mi across. You'll find it in Division No. 18. Closest neighbour on DepthScout: Nesootao Lake, 5 mi south of here.
Spring cisco (lake herring) on Tyrrell Lake hold shallow, usually 6 to 23 ft. Depth-wise the year is flat: 7 to 23 ft in summer, 7 to 23 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 20 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a vertical flutter spoon (small) or a drop-shot micro plastic.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 6 to 23 ft | dawn & dusk | Deep basin (20 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 7 to 23 ft | dawn | Deep basin (20 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 23 ft | dusk & dawn | open water | Small casting spoon, Inline spinner (silver) |
| Winter | 7 to 23 ft | dawn | Deep basin (20 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring lake whitefish on Tyrrell Lake hold shallow, usually 7 to 23 ft. Depth-wise the year is flat: 7 to 23 ft in summer, 7 to 23 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 20 ft that grades prime for summer. The feeding windows run early morning. The summer box starts with a blade bait vertical or a small jigging spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 7 to 23 ft | midday & dawn | open water | Small jig + waxworm, Blade bait (small) |
| Summer | 7 to 23 ft | dawn | Deep basin (20 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 6 to 23 ft | dusk | Main-lake point (8 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 7 to 23 ft | midday & dawn | Deep basin (20 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The spring pattern is a shallow one: northern pike in 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Main-lake point (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
When the water first warms, walleye slide up into 4 to 15 ft. By summer they slide out to 7 to 23 ft, and by winter most fish are in 7 to 23 ft. If you only fish one area, make it Deep basin: a deep basin around 20 ft that scores prime in winter. In summer the feeding windows fall in the evening and early morning. Keep a crawler harness on bottom bouncer or a deep crankbait (trolled) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Main-lake point (8 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 7 to 23 ft | dusk & dawn | Main-lake point (8 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 7 to 23 ft | dusk & night | Main-lake point (8 ft) | Jigging rap, Jig + big minnow |
| Winter | 7 to 23 ft | dusk & dawn | Deep basin (20 ft) | Jigging spoon + minnow head, Rattle bait |
When the water first warms, yellow perch slide up into 3 to 12 ft. Summer is a 7 to 23 ft game here, winter a 7 to 23 ft one. Start at Shallow bay flat. It's a weed flat holding about 3 ft of water and rates prime come spring. The feeding windows run early morning. Keep a drop-shot micro plastics or a small spoon tipped with worm rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 7 to 23 ft | dawn | Deep basin (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 7 to 23 ft | midday | Deep basin (20 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 7 to 23 ft | midday & dawn | Deep basin (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Structure-wise the chart holds 5 features, led in depth by Deep basin at roughly 20 ft.
Season dates, license requirements, and size and bag limits for Saskatchewan waters are set by the Saskatchewan anglers' guide — and special regulations can apply to Tyrrell Lake specifically, so confirm the current rules before you fish.
Check the official Saskatchewan fishing regulations →
Tyrrell Lake is about 23 ft (7 m) deep 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.
Anglers target cisco (lake herring), lake whitefish, northern pike, walleye, yellow perch on Tyrrell Lake.
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for cisco (lake herring) in spring. Open the map above to see every rated spot for each species and season.
For cisco (lake herring), 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.
Fishing on Tyrrell Lake is regulated by the Saskatchewan anglers' guide. Check the official Saskatchewan regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Nesootao Lake 5 mi · Annabel Lake 5 mi · Johnson 7 mi · Hamell Lake 9 mi · Creighton Lake 11 mi · Mosher Lake 14 mi · Konuto Lake 18 mi · Mcrobbie Lake 19 mi, SK/MB · Attitti Lake 20 mi · Mid Lake 21 mi · Kistapiskaw Lake 24 mi · Jenny Lake 26 mi, MB
See how Tyrrell Lake stacks up: best walleye lakes in Saskatchewan · best northern pike lakes in Saskatchewan · best yellow perch lakes in Saskatchewan · best lake whitefish lakes in Saskatchewan
More water nearby: Division No. 18 fishing maps (166 charts). Browse all Saskatchewan fishing maps or see every water on DepthScout. 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.