Lake depth chart
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Rating depth structure for rainbow trout.
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1,987-acre lake in Fraser-Fort George Regional District, British Columbia. The lake tops out around 172 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 1,987 acres, worked by 16.3 miles of shoreline — one island included. The 2.6 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 10% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 4.7 mi of water from one end to the other, 1.4 mi at the beam. It sits in Fraser-Fort George Regional District. Wansa Lake sits 14 mi southwest — the closest neighbouring chart.
Come spring, look for burbot tight to the bank in 25 to 70 ft. Expect a summer slide to 50 to 120 ft, then a winter hold in 15 to 60 ft. Start at Break off the point. It's a drop-off holding about 77 ft of water and rates prime come fall. Prime time lands in after dark and midday. A heavy jig + cut bait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (77 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 50 to 120 ft | night & midday | Deep basin (146 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Break off the point (77 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Deep basin (146 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Spring kokanee on Purden Lake hold shallow, usually 10 to 30 ft. By summer they slide out to 30 to 70 ft, and by winter most fish are in 20 to 80 ft. The chart's best answer is Break off the point — drop-off, 77 ft, good for winter. Prime time lands in early morning. The summer box starts with a dodger + pink/orange squid on downrigger or a kokanee bug + corn.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Deep basin (146 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Break off the point (77 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 | Break off the point (77 ft) | Small glow jig + corn or maggot, Tiny spoon |
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Expect a summer slide to 8 to 30 ft, then a winter hold in 8 to 40 ft. Put Shallow bay flat first on the milk run — a feeding flat near 6 ft that grades good for spring. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| 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 | Main-lake point (43 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (77 ft) | Jigging spoon, Tube jig (white) |
The chart marks 6 structure features on Purden Lake; the deepest is Deep basin at about 146 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 Purden Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Purden Lake is about 172 ft (52 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 burbot, kokanee, rainbow trout on Purden Lake.
Break off the point is the top-rated area: a drop-off in about 77 ft of water that rates prime for burbot in fall. Open the map above to see every rated spot for each species and season.
For burbot, the summer bite is best in after dark and midday. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Purden 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.
Wansa Lake 14 mi · Aleza Lake 15 mi · Hansard Lake 15 mi · Amanita Lake 16 mi · Plantation Lake 16 mi · Grizzly Lake 17 mi · Milk Lake 18 mi · Deep Lake 18 mi · Spruce Lakes 20 mi · Opatcho Lake 20 mi · Tsitniz Lake 20 mi · Eaglet Lake 20 mi
See how Purden Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best burbot lakes in British Columbia
More water nearby: Fraser-Fort George Regional District fishing maps (188 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.