Lake depth chart
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6,107-acre lake in British Columbia. The lake tops out around 494 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. Here's the year, species by species, as the scoring engine sees it.
On the chart, Seton Lake draws 6,093 acres inside 32.4 miles of shoreline. The 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 0% of this chart, as modeled. The basin spans about 13.4 mi end to end and 2.4 mi across at its widest. The water lies in Squamish-Lillooet Regional District. Closest neighbour on DepthScout: Anderson Lake, 13 mi southwest of here.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official exact-water fish record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
The spring pattern is a shallow one: chinook salmon in 5 to 40 ft. As the season builds they drop to 50 to 120 ft, wintering in 30 to 90 ft. Top water on the chart: Offshore hump, an offshore hump in the 75 ft range, prime in summer. Time it for early morning and the evening. Summer baits: a flasher + fly (green/white) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 40 ft | dawn & dusk | open water | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 50 to 120 ft | dawn & dusk | Offshore hump (75 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dawn & dusk | Shoreline point (55 ft) | J-plug (glow), Flasher + fly |
| Winter | 30 to 90 ft | midday | open water | Small spoon on a slow troll, Stickbait deep |
In spring, coho salmon run shallow here, mostly 3 to 25 ft. Summer pushes them deeper, 30 to 70 ft, and winter fish settle into 20 to 60 ft. Offshore hump is the standout, an offshore hump at roughly 55 ft, rated prime for summer coho salmon. Time it for early morning and the evening. You won't need more than a dodger + fly or a medium spoon above the thermocline most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | open water | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 30 to 70 ft | dawn & dusk | Offshore hump (55 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 8 to 40 ft | dawn & dusk | open water | Casting spoon, Spinner (chartreuse) |
| Winter | 20 to 60 ft | midday | open water | Small spoon, slow troll |
Start shallow in spring: kokanee sit in 10 to 30 ft that time of year. Warm water sends them out to 30 to 70 ft; cold water stacks them in 20 to 80 ft. Top water on the chart: Offshore hump, an offshore hump in the 55 ft range, prime in summer. Fish it in early morning and you'll meet the bite. Throw a dodger + pink/orange squid on downrigger or a kokanee bug + corn until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | open water | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | Offshore hump (55 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 (75 ft) | Small glow jig + corn or maggot, Tiny spoon |
Spring steelhead on Seton Lake hold shallow, usually 3 to 20 ft. They move out to 5 to 45 ft in summer and finish the year down in 4 to 15 ft. Put Offshore hump first on the milk run — an offshore hump near 55 ft that grades good for summer. The feeding windows run early morning and the evening. The summer box starts with an orange dodger + fly high in the column or a thin spoon off boards.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | open water | Small spoon or spinner at the mouths, Jig + waxworm under float |
| Summer | 5 to 45 ft | dawn & dusk | Offshore hump (55 ft) | Orange dodger + fly high in the column, Thin spoon off boards |
| Fall | 5 to 30 ft | dawn & dusk | open water | Spinner (silver/blue), Casting spoon |
| Winter | 4 to 15 ft | midday | open water | Float jig (black/purple), Bead rig |
The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. The spot to know is Shallow bay flat, a feeding flat in about 6 ft of water that rates good for rainbow trout in spring. Plan around early morning and the evening in the warm months. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| 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 | open water | Jigging spoon, Tube jig (white) |
When the water first warms, lake whitefish slide up into 15 to 45 ft. By summer they slide out to 40 to 90 ft, and by winter most fish are in 25 to 70 ft. If you only fish one area, make it Offshore hump: an offshore hump around 75 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a blade bait vertical or a small jigging spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Offshore hump (55 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Offshore hump (75 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | open water | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Offshore hump (55 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Seton Lake also holds bull trout (30 to 90 ft in summer), sockeye salmon (3 to 80 ft in summer), pink salmon (3 to 70 ft in summer). Pick any of them on the map above for rated spots and bait picks.
The chart marks 12 structure features on Seton Lake; the deepest is Deep basin at about 420 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 Seton Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Seton Lake is about 494 ft (151 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 chinook salmon, coho salmon, kokanee, steelhead, rainbow trout, lake whitefish, bull trout, sockeye salmon, pink salmon on Seton Lake.
Offshore hump is the top-rated area: an offshore hump in about 75 ft of water that rates prime for lake whitefish in summer. Scroll up to the map for the complete spot list by species and season.
For chinook salmon, 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 Seton 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.
Anderson Lake 13 mi · Keary Lake 17 mi · Carol Lake 19 mi · Pavilion Lake 21 mi · Parke Lake 21 mi · Finney Lake 22 mi · Duffey Lake 22 mi · Aleece Lake 22 mi · Blackwater Lake 22 mi · Pear Lake 24 mi · Gates Lake 27 mi · Bedard Lake 27 mi
See how Seton Lake stacks up: best rainbow trout lakes in British Columbia · best chinook salmon lakes in British Columbia · best coho salmon lakes in British Columbia · best steelhead lakes in British Columbia
More water nearby: Squamish-Lillooet Regional District fishing maps (48 charts). Browse all British Columbia fishing maps. 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.