Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for rainbow trout.
Shared by DepthScout anglers. Exact spots stay private, always.
403-acre lake near Grande Cache. The lake tops out around 40 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What the data behind the map says about each species, season by season:
The outline encloses 403 acres, worked by 5.3 miles of shoreline. A middling shoreline index (1.9) gives it some bays to work without being a maze. 89% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. The basin spans about 1.9 mi end to end and 0.7 mi across at its widest. Division No. 18 claims this one. Its nearest charted neighbour, Victor Lake, is 2 mi to the southwest.
Come spring, look for brook trout tight to the bank in 2 to 15 ft. They move out to 10 to 30 ft in summer and finish the year down in 3 to 20 ft. If you only fish one area, make it Main-lake point: a point around 3 ft that scores prime in spring. Best bite is early morning and the evening. A small spoon fished deep or a trolled lake-clear wobbler + worm is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (5 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (3 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (5 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring burbot on Grande Cache Lake hold shallow, usually 12 to 40 ft. Depth-wise the year is flat: 12 to 40 ft in summer, 10 to 40 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 37 ft that grades prime for spring. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 12 to 40 ft | night & dusk | Deep basin (37 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 12 to 40 ft | night & midday | Deep basin (37 ft) | Heavy jig + cut bait |
| Fall | 12 to 40 ft | night & dusk | Deep basin (37 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 10 to 40 ft | night & dusk | Deep basin (37 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
When the water first warms, rainbow trout slide up into 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. Start at Deep basin. It's a deep basin holding about 37 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Break off the point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Deep basin (37 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Deep basin (37 ft) | Jigging spoon, Tube jig (white) |
Count 8 structure marks on this chart. The deepest, Deep basin, sits near 37 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
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 Grande Cache Lake specifically, so confirm the current rules before you fish.
Check the official Alberta fishing regulations →
Grande Cache Lake is about 40 ft (12 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 brook trout, burbot, rainbow trout 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. Scroll up to the map for the complete spot list by species and season.
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.
Fishing on Grande Cache Lake 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.
Victor Lake 2 mi · Pierre Greys Lakes 18 mi · Cecilia Lake 40 mi, BC · Rock Lake 44 mi · Kakwa Lake 46 mi, BC · Babette Lake 48 mi, BC · Jarvis Lakes 50 mi, BC · Moonias Lake 54 mi, BC · Gregg Lake 57 mi · Kinney Lake 57 mi, BC · Graveyard/Cache Lakes 58 mi · Jarvis Lake 59 mi
See how Grande Cache Lake stacks up: best rainbow trout lakes in Alberta · best brook trout lakes in Alberta · best burbot lakes in Alberta
More water nearby: Division No. 18 fishing maps (6 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.