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Rating depth structure for walleye.
Shared by DepthScout anglers. Exact spots stay private, always.
2,769-acre lake near Peace, BC. The lake tops out around 157 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
Traced from the shoreline, Gwillim Lake runs 2,651 acres with 15 miles of edge. Index 2.1 on the shoreline: a few honest points and pockets, nothing labyrinthine. About 1% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 6 mi long by 1.6 mi wide at the broadest reach. The water lies in Peace River Regional District. The nearest mapped water is Moose Lake, 7 mi to the southeast.
The spring pattern is a shallow one: arctic grayling in 2 to 10 ft. Midsummer fish sit out in 3 to 15 ft before dropping to 8 to 25 ft for winter. The spot to know is Offshore hump, an offshore hump in about 17 ft of water that rates prime for arctic grayling in winter. Plan around the evening and early morning in the warm months. Summer baits: a dry fly (parachute adams, elk hair caddis) or a small inline spinner gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | open water | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Shallow bay flat (18 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Break off the point (126 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Offshore hump (17 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
The spring pattern is a shallow one: burbot in 25 to 70 ft. As the season builds they drop to 50 to 120 ft, wintering in 15 to 60 ft. Top water on the chart: Offshore hump, an offshore hump in the 17 ft range, prime in winter. Time it for after dark and midday. Summer baits: a heavy jig + cut bait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Sharp break (58 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Deep basin (132 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Sharp break (58 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Offshore hump (17 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
The spring pattern is a shallow one: lake trout in 10 to 40 ft. As the season builds they drop to 50 to 120 ft, wintering in 20 to 80 ft. Top water on the chart: Main-lake point, a point in the 21 ft range, prime in spring. Time it for early morning. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Main-lake point (21 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 50 to 120 ft | dawn | Deep basin (132 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Offshore hump (17 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 20 to 80 ft | dawn | Offshore hump (17 ft) | White tube jig, Airplane jig |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a feeding flat at roughly 18 ft, rated prime for summer northern pike. Time it for early morning and the evening. You won't need more than a bucktail or a weedless spoon over cabbage most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (18 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow bay flat (18 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (18 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (18 ft) | Tip-ups, Large jigging spoon |
Spring walleye on Gwillim Lake hold shallow, usually 4 to 15 ft. They move out to 15 to 35 ft in summer and finish the year down in 20 to 40 ft. Put Offshore hump first on the milk run — an offshore hump near 17 ft that grades prime for summer. The feeding windows run the evening and early morning. The summer box starts with a crawler harness on bottom bouncer or a deep crankbait (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | open water | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Offshore hump (17 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Main-lake point (21 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Offshore hump (17 ft) | Jigging spoon + minnow head, Rattle bait |
Come spring, look for lake whitefish tight to the bank in 15 to 45 ft. Expect a summer slide to 40 to 90 ft, then a winter hold in 25 to 70 ft. Start at Offshore hump. It's an offshore hump holding about 17 ft of water and rates prime come spring. Prime time lands in early morning. A blade bait vertical or a small jigging spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Offshore hump (17 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Sharp break (58 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Offshore hump (17 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Sharp break (58 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Gwillim Lake carries 10 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 132 ft down.
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 British Columbia waters are set by the BC freshwater fishing synopsis — and special regulations can apply to Gwillim Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Gwillim Lake is about 157 ft (48 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 arctic grayling, burbot, lake trout, northern pike, walleye, lake whitefish on Gwillim Lake.
Offshore hump is the top-rated area: an offshore hump in about 17 ft of water that rates prime for burbot in winter. The interactive chart above rates every spot for each species and season.
For arctic grayling, the summer bite is best in the evening and 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 Gwillim 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.
Moose Lake 7 mi · Boulder Lake 13 mi · Wasp Lake 17 mi · Quality Lake 24 mi · Sundance Lakes 25 mi · Jackfish Lake 32 mi · Bearhole Lake 32 mi · Iver Lake 34 mi · Boot Lake 35 mi · Hook Lake 36 mi · Trout Lake 36 mi · Moberly Lake 37 mi
See how Gwillim Lake stacks up: best walleye lakes in British Columbia · best northern pike lakes in British Columbia · best lake trout lakes in British Columbia · best lake whitefish lakes in British Columbia
More water nearby: Peace River Regional District fishing maps (100 charts). Browse all British Columbia 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.