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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
10,439-acre lake in Alberni-Clayoquot Regional District, British Columbia. The lake tops out around 640 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Sproat Lake runs 10,439 acres with 64.2 miles of edge — 11 islands included. The 4.5 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 0% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. End to end it runs roughly 14.7 mi, about 4.5 mi across. The water lies in Alberni-Clayoquot Regional District. For a second option, Gracie Lake lies 3 mi south.
When the water first warms, cutthroat trout slide up into 3 to 15 ft. Summer is a 10 to 35 ft game here, winter a 10 to 40 ft one. Start at Sharp break. It's a drop-off holding about 58 ft of water and rates good come summer. The feeding windows run early morning and the evening. Keep a trolled spoon (small) or an inline spinner rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | open water | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Sharp break (58 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (160 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Sharp break (58 ft) | Small jigging spoon, Marabou jig |
Spring puts kokanee in skinny water — 10 to 30 ft is the zone. Warm water sends them out to 30 to 70 ft; cold water stacks them in 20 to 80 ft. Offshore hump is the standout, an offshore hump at roughly 58 ft, rated prime for summer kokanee. Plan around early morning in the warm months. A dodger + pink/orange squid on downrigger or a kokanee bug + corn covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Deep basin (544 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Offshore hump (58 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | open water | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 20 to 80 ft | dawn | Offshore hump (58 ft) | Small glow jig + corn or maggot, Tiny spoon |
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. Spring rainbow trout concentrate at Shallow bay flat, a good-rated feeding flat around 6 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shallow bay flat (6 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Shallow bay flat (6 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | open water | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Sharp break (58 ft) | Jigging spoon, Tube jig (white) |
The chart marks 13 structure features on Sproat Lake; the deepest is Deep basin at about 544 ft.
Access data: British Columbia Recreation Sites and Trails - Recreation Sites Subset. Confirm conditions and fees locally before you launch.
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 Sproat Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Sproat Lake is about 640 ft (195 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 cutthroat trout, kokanee, rainbow trout on Sproat Lake.
Offshore hump is the top-rated area: an offshore hump in about 58 ft of water that rates prime for kokanee in summer. Open the map above to see every rated spot for each species and season.
For cutthroat 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 Sproat 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.
Gracie Lake 3 mi · Turtle Lake 6 mi · Somers Lake 7 mi · Moran Lake 8 mi · Great Central Lake 9 mi · Lowry Lake 9 mi · Dickson Lake 9 mi · Doran Lake 11 mi · Ash Lake 11 mi · Turnbull Lake 11 mi · Mclaughlin Lake 11 mi · Henderson Lake 13 mi
See how Sproat Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best cutthroat trout lakes in British Columbia
More water nearby: Alberni-Clayoquot Regional District fishing maps (52 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.