Lake depth chart
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Rating depth structure for walleye.
Recent public catches load as you reach this section.
1,400-acre lake near ᐋᒪᒋᐑᐢᐱᒧᐏᓂᕽ Stanley Mission. The lake tops out around 64 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 1,397 acres of water rimmed by 20.4 miles of bank, with 14 islands in the mix. With a shoreline index of 3.9, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 62% of the surface on the model — that's where the groceries are. The basin spans about 4 mi end to end and 1.6 mi across at its widest. You'll find it in Division No. 18. Closest neighbour on DepthScout: Toland Bay Lake, 14 mi west of here.
The spring pattern is a shallow one: burbot in 19 to 64 ft. The depth story barely changes: 19 to 64 ft through summer, 15 to 60 ft in winter. The spot to know is Deep basin, a deep basin in about 54 ft of water that rates prime for burbot in spring. Plan around after dark and midday in the warm months. Summer baits: a heavy jig + cut bait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 19 to 64 ft | night & dusk | Deep basin (54 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 19 to 64 ft | night & midday | Deep basin (54 ft) | Heavy jig + cut bait |
| Fall | 19 to 64 ft | night & dusk | Deep basin (54 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Deep basin (54 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. They move out to 19 to 64 ft in summer and finish the year down in 19 to 64 ft. If you only fish one area, make it Deep basin: a deep basin around 54 ft that scores prime in summer. Best bite is early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (29 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 19 to 64 ft | dawn | Deep basin (54 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (29 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 19 to 64 ft | midday & dawn | Deep basin (54 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. Spring northern pike concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
Spring walleye on Thomas Lake hold shallow, usually 4 to 15 ft. By summer they slide out to 15 to 35 ft, and by winter most fish are in 20 to 40 ft. The chart's best answer is Break off the point — drop-off, 29 ft, prime for fall. Prime time lands in the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Main-lake point (16 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Break off the point (29 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Break off the point (29 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Break off the point (29 ft) | Jigging spoon + minnow head, Rattle bait |
Structure-wise the chart holds 6 features, led in depth by Deep basin at roughly 54 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 Thomas Lake specifically, so confirm the current rules before you fish.
Check the official Saskatchewan fishing regulations →
Thomas Lake is about 64 ft (20 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 burbot, lake whitefish, northern pike, walleye on Thomas Lake.
Deep basin is the top-rated area: a deep basin in about 54 ft of water that rates prime for burbot in spring. Scroll up to the map for the complete spot list by species and season.
For burbot, the summer bite is best in after dark and midday. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Thomas 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.
Toland Bay Lake 14 mi · Sim Lake 15 mi · Preview Lake 16 mi · Hebden Lake 17 mi · Sulphide Lake 18 mi · Contact Lake 18 mi · Pechey Lake 19 mi · Aikenhead Lake 19 mi · Baldhead Lake 19 mi · Scythes Lake 19 mi · Duck Lake 19 mi · Cote Lake 20 mi
See how Thomas Lake stacks up: best walleye lakes in Saskatchewan · best northern pike lakes in Saskatchewan · best lake whitefish lakes in Saskatchewan · best burbot 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.