Lake depth chart
Today's read
Rating depth structure for walleye.
Shared by DepthScout anglers. Exact spots stay private, always.
495-acre lake near St. Paul. The lake tops out around 70 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Lac Saint Cyr draws 493 acres inside 8.1 miles of shoreline — 2 islands included. A development index of 2.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. Roughly 44% of the water is 15 ft or less, the band where the food chain lives. End to end it runs roughly 1.6 mi, about 1.1 mi across. You'll find it in Division No. 12. For a second option, Chickenhill Lake lies 14 mi north.
The spring pattern is a shallow one: burbot in 25 to 70 ft. The depth story barely changes: 21 to 70 ft through summer, 15 to 60 ft in winter. The spot to know is Deep basin, a deep basin in about 69 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 | 25 to 70 ft | night & dusk | Deep basin (69 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 21 to 70 ft | night & midday | Deep basin (69 ft) | Heavy jig + cut bait |
| Fall | 21 to 70 ft | night & dusk | Deep basin (69 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Deep basin (69 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
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 1 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 (1 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow feeding flat (20 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow feeding flat (20 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (1 ft) | Tip-ups, Large jigging spoon |
Spring walleye on Lac Saint Cyr 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 Shallow feeding flat — feeding flat, 20 ft, good for summer. 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 (1 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Shallow feeding flat (20 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Main-lake point (1 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Deep basin (69 ft) | Jigging spoon + minnow head, Rattle bait |
Early season yellow perch use the shallows, holding in 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 15 to 35 ft one. The chart's best answer is Shallow bay flat — weed flat, 1 ft, prime for spring. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Shallow feeding flat (20 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Deep basin (69 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Shallow feeding flat (20 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Lac Saint Cyr carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 69 ft down.
Season dates, license requirements, and size and bag limits for Alberta waters are set by the Alberta fishing regulations — and special regulations can apply to Lac Saint Cyr specifically, so confirm the current rules before you fish.
Check the official Alberta fishing regulations →
Lac Saint Cyr is about 70 ft (21 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target burbot, northern pike, walleye, yellow perch on Lac Saint Cyr.
Deep basin is the top-rated area: a deep basin in about 69 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 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 Lac Saint Cyr is regulated by the Alberta fishing regulations. Check the official Alberta regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Chickenhill Lake 14 mi · Kehiwin Lake 15 mi · Lac Sante 16 mi · Vincent Lake 16 mi · Beauvallon Lake 19 mi · Upper Mann Lake 22 mi · Lower Mann Lake 23 mi · Grassy Island Lake 26 mi · Whitney Lake 26 mi · Muriel Lake 26 mi · Moose Lake 27 mi · Laurier Lake 27 mi
See how Lac Saint Cyr stacks up: best walleye lakes in Alberta · best northern pike lakes in Alberta · best yellow perch lakes in Alberta · best burbot lakes in Alberta
More water nearby: Division No. 12 fishing maps (45 charts). Browse all Alberta fishing maps or see every water on DepthScout. Bathymetry: published agency survey data. 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.