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Rating depth structure for rainbow trout.
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6,165-acre lake in Powell River Regional District, British Columbia. The lake tops out around 463 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Below is the species-by-species picture, pulled from the same data the map uses.
On the chart, Lois Lake draws 5,905 acres inside 36.6 miles of shoreline, broken up by 11 islands. A development index of 3.4 means a maze of bays and points: far more casting targets than a round bowl of the same size. About 12% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Tip to tip the water measures near 8.5 mi with a 4.6-mi widest point. The water lies in Powell River Regional District. The nearest mapped water is Rainy Day Lake, 5 mi to the southeast.
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 Shoreline point. It's a point holding about 5 ft of water and rates prime come fall. 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 | Shoreline point (5 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Rock reef (12 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Shoreline point (5 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Rock reef (12 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 45 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 | Offshore hump (27 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Offshore hump (45 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 (45 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. Fall rainbow trout concentrate at Rock reef, a prime-rated rock pile around 12 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 | Shoreline point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Rock reef (12 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Rock reef (12 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Rock reef (12 ft) | Jigging spoon, Tube jig (white) |
13 pieces of structure are mapped here — Deep basin, around 394 ft, is the deepest of them.
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 Lois Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Lois Lake is about 463 ft (141 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 Lois Lake.
Rock reef is the top-rated area: a rock pile in about 12 ft of water that rates prime for rainbow trout in fall. The interactive chart above rates every 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 Lois 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.
Rainy Day Lake 5 mi · Horseshoe Lake 5 mi · Khartoum Lake 6 mi · Nanton Lake 7 mi · East Lake 9 mi · Duck Lake 9 mi · West Lake 9 mi · Dodd Lake 10 mi · Lewis Lake 10 mi · Hammil Lake 10 mi · Haslam Lake 11 mi · Ambrose Lake 12 mi
See how Lois 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: Powell River Regional District fishing maps (19 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.