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Rating depth structure for walleye.
Shared by DepthScout anglers. Exact spots stay private, always.
6,328-acre lake near Descharme Lake. The lake tops out around 72 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Every species below gets its seasonal read from the same numbers driving the chart.
Preston Lake maps at 6,314 acres behind 14 miles of shoreline, broken up by 5 islands. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. 39% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. End to end it runs roughly 4.1 mi, about 3.3 mi across. Division No. 18 claims this one. Ed's Lake sits 4 mi northwest — the closest neighbouring chart.
Spring arctic grayling on Preston Lake hold shallow, usually 2 to 10 ft. They move out to 3 to 15 ft in summer and finish the year down in 8 to 25 ft. Put Rock reef first on the milk run — a rock pile near 9 ft that grades prime for spring. The feeding windows run the evening and early morning. The summer box starts with a dry fly (parachute adams, elk hair caddis) or a small inline spinner.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Rock reef (9 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Rock reef (9 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Rock reef (9 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Rock reef (9 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
Come spring, look for burbot tight to the bank in 25 to 70 ft. They move out to 22 to 72 ft in summer and finish the year down in 15 to 60 ft. If you only fish one area, make it Deep basin: a deep basin around 61 ft that scores prime in spring. Best bite is after dark and midday. A heavy jig + cut bait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Deep basin (61 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 22 to 72 ft | night & midday | Deep basin (61 ft) | Heavy jig + cut bait |
| Fall | 22 to 72 ft | night & dusk | Deep basin (61 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Deep basin (61 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
The spring pattern is a shallow one: cisco (lake herring) in 10 to 40 ft. Midsummer fish sit out in 22 to 72 ft before dropping to 20 to 60 ft for winter. The spot to know is Deep basin, a deep basin in about 61 ft of water that rates prime for cisco (lake herring) in summer. Plan around early morning in the warm months. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Break off the point (32 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 22 to 72 ft | dawn | Deep basin (61 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Rock reef (9 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Deep basin (61 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Come spring, look for lake trout tight to the bank in 10 to 40 ft. They move out to 22 to 72 ft in summer and finish the year down in 18 to 72 ft. If you only fish one area, make it Deep basin: a deep basin around 61 ft that scores prime in summer. Best bite is early morning. A white tube jig (deep) or a magnum spoon on downrigger is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (18 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 22 to 72 ft | dawn | Deep basin (61 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Rock reef (9 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 18 to 72 ft | dawn | Deep basin (61 ft) | White tube jig, Airplane jig |
The spring pattern is a shallow one: lake whitefish in 15 to 45 ft. Midsummer fish sit out in 22 to 72 ft before dropping to 25 to 70 ft for winter. The spot to know is Deep basin, a deep basin in about 61 ft of water that rates prime for lake whitefish in summer. Plan around early morning in the warm months. Summer baits: a blade bait vertical or a small jigging spoon gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Break off the point (32 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 22 to 72 ft | dawn | Deep basin (61 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (9 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Deep basin (61 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Come spring, look for northern pike tight to the bank in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Start at Shallow bay flat. It's a weed flat holding about 6 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A bucktail or a weedless spoon over cabbage is the honest summer answer here.
| 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 |
Preston Lake also holds walleye (15 to 35 ft in summer), yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 9 features, led in depth by Deep basin at roughly 61 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 Preston Lake specifically, so confirm the current rules before you fish.
Check the official Saskatchewan fishing regulations →
Preston Lake is about 72 ft (22 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 arctic grayling, burbot, cisco (lake herring), lake trout, lake whitefish, northern pike, walleye, yellow perch on Preston Lake.
Deep basin is the top-rated area: a deep basin in about 61 ft of water that rates prime for burbot in spring. Open the map above to see every rated spot for each species and season.
For arctic grayling, the summer bite is best in the evening and 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 Preston 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.
Ed's Lake 4 mi · Amber Lake 5 mi · Patterson Lake 18 mi · Broach Lake 22 mi · Gedak Lake 23 mi · Harbo Lake 24 mi · Hodge Lake 28 mi · Harrison Lake 31 mi · Murison Lake 32 mi · Minto Lake 33 mi · Fontaine Lake 39 mi · Sandy Lake 69 mi, SK/AB
See how Preston Lake stacks up: best walleye lakes in Saskatchewan · best northern pike lakes in Saskatchewan · best yellow perch lakes in Saskatchewan · best lake trout 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.