Williams Lake Depth Map & Fishing Spots (BC)

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Lake depth chart

Williams Lake, BC

Max 79 ft

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Where to start

Chironomids (stillwater midges) window is on — see the hatch outlook

Hatch outlook

Chironomids (stillwater midges)Active window

Typical here: Sep 1 – Oct 31 · the smaller fall second season — hatches continue on mild afternoons

nymphearly morning, start of the day — fish the bloodworm ON the bottom — 4–6 inches off the mud before the emergence starts
pupathe cool morning hours are prime — as the emergence builds, slide the pupa up to 12–15 inches off bottom under the indicator; a little wind chop does the jigging

Concentrates by DEPTH BAND and mud type, not a fixed spot: roughly 20–25 ft in spring, deeper midsummer, in against the feeder creeks in summer heat, 5–25 ft in fall. Match the band.

This one translates almost perfectly: a slip float with a 1/64–1/100 oz midge-pattern jig set 4–15 inches off bottom over a mud flat, dead-sticked with the chop doing the work. Depth control is everything — no moving lure imitates a hanging pupa; the float rig IS the technique.

The event happens over open mud flats alongside weedlines, channels and basin edges; feeder-creek mouths in summer heat

Water boatman fall flightsActive window

Typical here: Sep 1 – Oct 31 · fall mating flights on calm sunny days — 'raindrops hitting the water'; a smaller spring flight is documented right after ice-off

adultmiddday-ish on calm, sunny fall days — the fishable moment is the splashdown: boatmen dive in headfirst trailing an air bubble and make repeated trips back to the surface — a fly or lure that dives nose-first on the drop imitates exactly this

Takes are seldom subtle — trout ravage boatmen as they hit the water and during their subsurface runs.

Tailor-made for hardware: a small 1/16 oz silver-bellied spoon or jig cast AT the rings of a splashdown sinks headfirst exactly like the natural — twitch-pause it back through the top few feet. On flight days fan-cast the shallow weed margins.

The event happens over near-shore shallows, weed beds and shoal margins on calm sunny fall afternoons

Scuds (Gammarus shrimp)Active window

Typical here: Jan 1 – Dec 31 · year-round — the biomass behind the Kamloops fishery's growth rates; most important early spring and again in fall as dying weed cover exposes them

adultall day, year-round — best when weed cover is thin (early spring, late fall) — quick 1-inch 'shrimpy' strips along the weed beds and marl; in fall a subtle slow retrieve just off the bottom

Not an event — the pantry. Scud water is why these lakes grow big rainbows; fish them when nothing is hatching.

No hardware imitates a half-inch freshwater shrimp well — this is a jig game: a small olive/tan micro-jig under a slip float worked along the weed edges, or fished just off bottom in fall. Otherwise treat scud water as the signal that the lake grows big fish.

The event happens over weed beds, chara and marl flats and shoal-zone debris in calcium-rich lakes

Leeches (stillwater staple)Active window

Typical here: Jan 1 – Dec 31 · year-round — the go-to at ice-off before the chironomids start, and again through fall

adultany hour; low light and the cool ends of the season fish best — slow steady hand-twist or 2–3 inch pulls — in fall a slow steady pull outfishes a fast strip — or hang a balanced leech under an indicator

Baseline food, not an event — the honest 'nothing is hatching' answer on every interior lake, bracketing the season at ice-off and late fall.

The most spin-friendly item on the menu, with agency-documented tactics: slow-troll a Worden's Triple Teazer or Panther Martin along the drop-offs (the BC agency's own recommendation), or fish a black or olive marabou jig under a slip float over the shoal edge.

The event happens over shoal-zone vegetation, woody debris and rock, sliding to the drop-offs by day

Next on this water

Callibaetis (Speckled Dun) · mayflyApr 15 – Jul 31 · in ~7 months

Damselfly migration · forageJun 1 – Jul 31 · in ~9 months

Traveling sedge (giant lake caddis) · caddisJun 10 – Aug 15 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

Depth · ft

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Recent catches at Williams Lake

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Fishing Williams Lake: what the data says

1,722-acre lake in Cariboo Regional District, British Columbia. The lake tops out around 79 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What follows comes from the same scoring engine that paints the spots above.

The outline encloses 1,722 acres, worked by 12.6 miles of shoreline, with 2 islands in the mix. An index of 2.2 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 11% of the surface on the model — that's where the groceries are. Tip to tip the water measures near 4.4 mi with a 1.1-mi widest point. It sits in Cariboo Regional District. Its nearest charted neighbour, Reservoir Lake, is 4 mi to the north.

Burbot fishing at Williams Lake

Come spring, look for burbot tight to the bank in 25 to 70 ft. Expect a summer slide to 24 to 79 ft, then a winter hold in 15 to 60 ft. Start at Deep basin. It's a deep basin holding about 67 ft of water and rates prime come spring. 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	Deep basin (67 ft)	Glow jigging spoon + cut bait, Rattle bait (dark)
Summer	24 to 79 ft	night & midday	Deep basin (67 ft)	Heavy jig + cut bait
Fall	24 to 79 ft	night & dusk	Deep basin (67 ft)	Glow spoon + minnow head, Blade bait (slow)
Winter	15 to 60 ft	night & dusk	Deep basin (67 ft)	Glow tungsten + cut bait, Rattle spoon + minnow head

Kokanee fishing at Williams Lake

Spring kokanee on Williams 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 79 ft. The chart's best answer is Deep basin — deep basin, 67 ft, prime for summer. 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 (67 ft)	Small dodger + squid (pink), Wedding-ring spinner + corn
Summer	30 to 70 ft	dawn	Deep basin (67 ft)	Dodger + pink/orange squid on downrigger, Kokanee bug + corn
Fall	5 to 40 ft	dawn	Break off the point (36 ft)	Dodger + squid (deeper red/purple), Small spoon
Winter	20 to 79 ft	dawn	Deep basin (67 ft)	Small glow jig + corn or maggot, Tiny spoon

Rainbow Trout fishing at Williams Lake

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 Break off the point first on the milk run — a drop-off near 36 ft that grades prime for winter. 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	Main-lake point (20 ft)	Inline spinner (silver), Small spoon
Summer	8 to 30 ft	dawn & dusk	Main-lake point (20 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	10 to 35 ft	dawn & dusk	Main-lake point (20 ft)	Casting spoon, Jerkbait over shoals
Winter	8 to 40 ft	dawn	Break off the point (36 ft)	Jigging spoon, Tube jig (white)

Lake Whitefish fishing at Williams Lake

The spring pattern is a shallow one: lake whitefish in 15 to 45 ft. As the season builds they drop to 24 to 79 ft, wintering in 25 to 70 ft. Top water on the chart: Deep basin, a deep basin in the 67 ft range, prime in summer. Time it for early morning. Summer baits: a blade bait vertical or a small jigging spoon gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	15 to 45 ft	midday & dawn	Break off the point (36 ft)	Small jig + waxworm, Blade bait (small)
Summer	24 to 79 ft	dawn	Deep basin (67 ft)	Blade bait vertical, Small jigging spoon
Fall	8 to 30 ft	dusk	Main-lake point (20 ft)	Small spoon (gold), Jig + plastic larva
Winter	25 to 70 ft	midday & dawn	Deep basin (67 ft)	Jigging spoon + bead chain, Tungsten jig + waxie

Notable structure

The chart marks 6 structure features on Williams Lake; the deepest is Deep basin at about 67 ft.

Deep basin: deep basin, around 67 ft
Break off the point: drop-off, around 36 ft
Main-lake point: point, around 20 ft
Secondary point: point, around 20 ft
Shallow bay flat: feeding flat, around 6 ft
Back-bay flat: feeding flat, around 6 ft

Williams Lake fishing regulations

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 Williams Lake specifically, so confirm the current rules before you fish.

Check the official British Columbia fishing regulations →

Common questions

How deep is Williams Lake?

Williams Lake is about 79 ft (24 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.

What fish are in Williams Lake?

Anglers target burbot, kokanee, rainbow trout, lake whitefish on Williams Lake.

Where is the best fishing spot on Williams Lake?

Deep basin is the top-rated area: a deep basin in about 67 ft of water that rates prime for burbot in spring. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Williams Lake?

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.

What are the fishing regulations for Williams Lake?

Fishing on Williams 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.

Nearby waters

Reservoir Lake 4 mi · Brunson Lake 6 mi · Colpitt Lake 8 mi · Dugan Lake 8 mi · Dewar Lake 10 mi · Leeches Lake 12 mi · Felker Lake 12 mi · Till Lake 13 mi · Buchanan Lake 13 mi · Bunting Lake 14 mi · Spokin Lake 14 mi · Chimney Lake 15 mi

See how Williams Lake stacks up: best rainbow trout lakes in British Columbia · best kokanee lakes in British Columbia · best lake whitefish lakes in British Columbia · best burbot lakes in British Columbia

More water nearby: Cariboo Regional District fishing maps (445 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.