Lake depth chart
Today's read
Rating depth structure for walleye.
Recent public catches load as you reach this section.
93-acre lake in Alberta. The lake tops out around 30 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
On the chart, Pierre Greys Lakes draws 93 acres inside 2.2 miles of shoreline. Index 1.6 on the shoreline: a few honest points and pockets, nothing labyrinthine. The shallow band under 15 ft claims about 63% of the surface — that's where the groceries are. End to end it runs roughly 0.8 mi, about 0.3 mi across. The water lies in Division No. 18. For a second option, Grande Cache Lake lies 18 mi west.
Early season yellow perch use the shallows, holding in 3 to 12 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 9 to 30 ft. Put Shallow bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 | 10 to 30 ft | dawn | Deep basin (30 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 9 to 30 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (30 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (30 ft) | Tungsten jig + spikes, Rattle spoon (small) |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Time it for early morning and the evening. 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 (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (12 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Back-bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Back-bay flat (6 ft) | Tip-ups, Large jigging spoon |
Spring walleye on Pierre Greys Lakes hold shallow, usually 4 to 15 ft. They move out to 9 to 30 ft in summer and finish the year down in 9 to 30 ft. Put Break off the point first on the milk run — a drop-off near 12 ft that grades prime for fall. The feeding windows run the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Secondary point (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 9 to 30 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (12 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 9 to 30 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (12 ft) | Jigging rap, Jig + big minnow |
| Winter | 9 to 30 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (30 ft) | Jigging spoon + minnow head, Rattle bait |
Come spring, look for lake whitefish tight to the bank in 9 to 30 ft. Through summer count on 9 to 30 ft; the winter hold is 9 to 30 ft. Start at Deep basin. It's a deep basin holding about 30 ft of water and rates prime come summer. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 9 to 30 ft chart-limited; documented 15 to 45 ft | midday & dawn | Break off the point (12 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 9 to 30 ft chart-limited; documented 40 to 90 ft | dawn | Deep basin (30 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Break off the point (12 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 9 to 30 ft chart-limited; documented 25 to 70 ft | midday & dawn | Deep basin (30 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
The spring pattern is a shallow one: burbot in 9 to 30 ft. The depth story barely changes: 9 to 30 ft through summer, 8 to 30 ft in winter. Top water on the chart: Deep basin, a deep basin in the 30 ft range, prime in spring. Time it for after dark and midday. Summer baits: a heavy jig + cut bait gets it done.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 9 to 30 ft chart-limited; documented 25 to 70 ft | night & dusk | Deep basin (30 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 9 to 30 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (30 ft) | Heavy jig + cut bait |
| Fall | 9 to 30 ft chart-limited; documented 30 to 80 ft | night & dusk | Deep basin (30 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 8 to 30 ft chart-limited; documented 15 to 60 ft | night & dusk | Deep basin (30 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 30 ft.
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 Pierre Greys Lakes specifically, so confirm the current rules before you fish.
Check the official Alberta fishing regulations →
Pierre Greys Lakes is about 30 ft (9 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 yellow perch, northern pike, walleye, lake whitefish, burbot on Pierre Greys Lakes. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
For yellow perch, 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 Pierre Greys Lakes 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.
Grande Cache Lake 18 mi · Victor Lake 21 mi · Rock Lake 34 mi · Gregg Lake 41 mi · Graveyard/Cache Lakes 43 mi · Jarvis Lake 45 mi · Kinky Lake 54 mi · Wildhorse Lakes 55 mi · Cecilia Lake 58 mi, BC · Kinney Lake 62 mi, BC · Obed Lake 64 mi · Kakwa Lake 64 mi, BC
See how Pierre Greys Lakes stacks up: best walleye lakes in Alberta · best northern pike lakes in Alberta · best yellow perch lakes in Alberta · best lake whitefish lakes in Alberta
More water nearby: Division No. 18 fishing maps (6 charts). Browse all Alberta fishing maps. 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.