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Fishing Grande Cache Lake: what the data says
403-acre lake near Grande Cache. The lake tops out around 40 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.
Brook Trout fishing at Grande Cache Lake
Start shallow in spring: brook trout sit in 2 to 15 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 3 to 20 ft. Main-lake point is the standout, a point at roughly 3 ft, rated prime for spring brook trout. Plan around early morning and the evening in the warm months. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Burbot fishing at Grande Cache Lake
Start shallow in spring: burbot sit in 12 to 40 ft that time of year. Summer fish stay in 12 to 40 ft, and winter fish hold in 10 to 40 ft. Deep basin is the standout, a deep basin at roughly 37 ft, rated prime for spring burbot. Plan around after dark and midday in the warm months. A heavy jig + cut bait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 12 to 40 ft | night & dusk | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 12 to 40 ft | night & midday | Heavy jig + cut bait |
| Fall | 12 to 40 ft | night & dusk | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 10 to 40 ft | night & dusk | Glow tungsten + cut bait, Rattle spoon + minnow head |
Rainbow Trout fishing at Grande Cache Lake
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Summer pushes them deeper, 8 to 30 ft, and winter fish settle into 8 to 40 ft. The spot to know is Deep basin, a deep basin in about 37 ft of water that rates prime for rainbow trout in winter. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 37 ft
- Shallow feeding flat: feeding flat, around 19 ft
- Break off the point: drop-off, around 5 ft
- Main-lake point: point, around 3 ft
- Secondary point: point, around 3 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
Common questions
How deep is Grande Cache Lake?
Grande Cache Lake is about 40 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Grande Cache Lake?
Anglers target rainbow trout, brook trout, burbot on Grande Cache Lake.
Where is the best fishing spot on Grande Cache Lake?
Deep basin is the top-rated area: a deep basin in about 37 ft of water that rates prime for burbot in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Grande Cache Lake?
For brook trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Victor Lake · Rock Lake · Gregg Lake · Jarvis Lake · Bear Lake · Wildhorse Lakes
See how Grande Cache Lake stacks up: best rainbow trout lakes in Alberta · best brook trout lakes in Alberta · best burbot lakes in Alberta
Browse all Alberta fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.