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Rating depth structure for rainbow trout.
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35-acre lake in Squamish-Lillooet Regional District, British Columbia. The lake tops out around 38 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. What follows comes from the same scoring engine that paints the spots above.
Alpha Lake maps at 35 acres behind 1.9 miles of shoreline — one island included. The 2.3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Littoral water — the productive band under ~15 ft — makes up 59% of this chart, as modeled. The basin spans about 0.5 mi end to end and 0.3 mi across at its widest. Squamish-Lillooet Regional District claims this one. Its nearest charted neighbour, Nita Lake, is 1 mi to the northeast.
Early season kokanee use the shallows, holding in 10 to 30 ft. Summer is an 11 to 38 ft game here, winter a 10 to 38 ft one. The chart's best answer is Deep basin — deep basin, 32 ft, prime for summer. Best bite is early morning. Tie on a dodger + pink/orange squid on downrigger or a kokanee bug + corn and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Deep basin (32 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 11 to 38 ft | dawn | Deep basin (32 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 38 ft | dawn | Deep basin (32 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 10 to 38 ft | dawn | Deep basin (32 ft) | Small glow jig + corn or maggot, Tiny spoon |
Spring rainbow trout on Alpha Lake hold shallow, usually 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 8 to 38 ft. Put Main-lake point first on the milk run — a point near 10 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (10 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Main-lake point (10 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (10 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 38 ft | dawn | Deep basin (32 ft) | Jigging spoon, Tube jig (white) |
The chart marks 5 structure features on Alpha Lake; the deepest is Deep basin at about 32 ft.
Season dates, license requirements, and size and bag limits for British Columbia waters are set by the BC freshwater fishing synopsis — and special regulations can apply to Alpha Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Alpha Lake is about 38 ft (12 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 kokanee, rainbow trout on Alpha Lake.
Deep basin is the top-rated area: a deep basin in about 32 ft of water that rates prime for kokanee in summer. Scroll up to the map for the complete spot list by species and season.
For kokanee, 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 Alpha Lake is regulated by the BC freshwater fishing synopsis. Check the official British Columbia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Nita Lake 1 mi · Alta Lake 2 mi · Lost Lake 4 mi · Rainbow Lake 5 mi · Green Lake 5 mi · Cheakamus Lake 7 mi · Showh Lakes 8 mi · Daisy Lake 10 mi · Callaghan Lake 11 mi · Freeman Lake 11 mi · Garibaldi Lake 11 mi · Starvation Lake 15 mi
See how Alpha Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia
More water nearby: Squamish-Lillooet Regional District fishing maps (48 charts). Browse all British Columbia 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.