Blue Lake Depth Map & Fishing Spots (Okanogan County, WA)

Hatch outlook

Callibaetis (Speckled Dun)Active window

Typical here: Aug 15 – Sep 15 · the smaller fall brood

nymphthe hours before the midday emergence — nymphs rise off the weed tops in a vertical zigzag that can take hours — sources split between slow 2–4 inch strips with long pauses and a quicker steady retrieve; carry both speeds
dunmidday, roughly 11am into early afternoon
spinnermid-to-late-morning falls

Trout browse the weed-bed edges knocking nymphs loose, then cruise the flats sipping duns at midday — the marquee western lake mayfly.

The midday emergence puts cruisers over weed flats in under 20 ft: a casting bubble with a #14 Callibaetis nymph retrieved dead-slow with pauses is the honest match. Between hatch hours, small spoons and #1 inline spinners along the weed edges and drop-offs pick off the same fish.

The event happens over weed flats and weed-bed edges in 20 ft of water or less

Chironomids (stillwater midges)Active window

Typical here: May 1 – Oct 31

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: Aug 25 – Oct 10 · peaks on crisp, bright fall days after the first cold snap

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

Grasshoppers (east-side summer)Active window

Typical here: Jun 15 – Sep 30

adultall day in high summer, best when afternoon wind knocks bugs onto the water

Pulls fish to the windward grassy banks and edges for months — fish the bank the wind blows ONTO.

The friendliest crossover of the summer: on lakes, drift the windward bank with a bubble-and-foam-hopper — the bubble's splash doesn't hurt a hopper presentation. On rivers, the same rig dead-drifted along the undercut grass banks, or small gold spinners under the banks between rises.

The event happens over grassy banks, undercut edges and windward shorelines

Next on this water

Damselfly migration · forageMay 15 – Jul 31 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

Loading depth chart…

Recent catches at Blue Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Blue Lake on the board.

Fishing Blue Lake: what the data says

309-acre lake near Okanogan County. The lake tops out around 65 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.

On the chart, Blue Lake draws 309 acres inside 3.1 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. Littoral water — the productive band under ~15 ft — makes up 56% of this chart. The basin spans about 1.3 mi end to end and 0.6 mi across at its widest. The water lies in Okanogan County. Closest neighbour on DepthScout: Fish Lake, 5 mi south of here.

Rainbow Trout fishing at Blue Lake

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 Creek inflow, an inflow / creek mouth in about 3 ft of water that rates prime 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	Creek inflow (3 ft)	Inline spinner (silver), Small spoon
Summer	8 to 30 ft	dawn & dusk	Old creek channel (6 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	10 to 35 ft	dawn & dusk	Old creek channel (6 ft)	Casting spoon, Jerkbait over shoals
Winter	8 to 40 ft	dawn	Old creek channel (6 ft)	Jigging spoon, Tube jig (white)

Largemouth Bass fishing at Blue Lake

In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 15 to 35 ft. Shallow bay flat is the standout, a weed flat at roughly 8 ft, rated prime for spring largemouth bass. Time it for early morning and the evening. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Shallow bay flat (8 ft)	Spinnerbait, Chatterbait
Summer	8 to 20 ft	dawn & dusk	Shallow bay flat (8 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Old creek channel (6 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	15 to 35 ft	midday	Old creek channel (6 ft)	Blade bait, Jigging spoon

Smallmouth Bass fishing at Blue Lake

Spring puts smallmouth bass in skinny water — 3 to 12 ft is the zone. As the season builds they drop to 10 to 30 ft, wintering in 20 to 45 ft. Spring smallmouth bass concentrate at Creek inflow, a prime-rated inflow / creek mouth around 3 ft. Warm-month bites cluster around early morning and the evening. A drop shot (goby/minnow) or a ned rig covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	dawn & dusk	Creek inflow (3 ft)	Ned rig, Tube jig
Summer	10 to 30 ft	dawn & dusk	open water	Drop shot (goby/minnow), Ned rig
Fall	8 to 25 ft	midday & dawn	Old creek channel (6 ft)	Jerkbait, Blade bait
Winter	20 to 45 ft	midday	open water	Blade bait, Hair jig

Yellow Perch fishing at Blue Lake

Spring yellow perch on Blue Lake hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Shallow bay flat — weed flat, 8 ft, prime for spring. Prime time lands in early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	midday & dawn	Shallow bay flat (8 ft)	Small jig + curly tail, Perch-pattern micro crank
Summer	10 to 30 ft	dawn	Shallow bay flat (8 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	12 to 35 ft	midday	Deep basin (65 ft)	Jigging spoon (small), Perch rig / spreader
Winter	15 to 35 ft	midday & dawn	Deep basin (65 ft)	Tungsten jig + spikes, Rattle spoon (small)

Bluegill fishing at Blue Lake

The spring pattern is a shallow one: bluegill in 1 to 6 ft. As the season builds they drop to 4 to 15 ft, wintering in 10 to 25 ft. Top water on the chart: Back-bay flat, a weed flat in the 3 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 6 ft	midday & dusk	Back-bay flat (3 ft)	1/32 oz jig + micro plastic, Tiny popper (evenings)
Summer	4 to 15 ft	dawn & dusk	Shallow bay flat (8 ft)	Small sponge spider (fly), Micro tube jig
Fall	6 to 18 ft	midday	Shallow bay flat (8 ft)	Micro jig + waxworm, Small spoon tipped
Winter	10 to 25 ft	midday	Shallow bay flat (8 ft)	Tungsten ice jig + plastic, Tiny spoon

Crappie fishing at Blue Lake

Spring puts crappie in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 10 to 25 ft, wintering in 15 to 35 ft. Spring crappie concentrate at Shallow bay flat, a prime-rated weed flat around 8 ft. Warm-month bites cluster around early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (8 ft)	1/16 oz jig + tube, Curly-tail grub
Summer	10 to 25 ft	dawn & dusk	Old creek channel (6 ft)	Jig trolled/spider-rigged, Small crankbait (trolled)
Fall	8 to 20 ft	dawn	Old creek channel (6 ft)	Jig + minnow combo, Small swimbait (1.5-2")
Winter	15 to 35 ft	midday	Deep basin (65 ft)	Tungsten jig + soft plastic, Tiny jigging spoon

Notable structure

The chart marks 6 structure features on Blue Lake; the deepest is Deep basin at about 65 ft.

Deep basin: deep basin, around 65 ft
Shallow bay flat: weed flat, around 8 ft
Old creek channel: creek channel, around 6 ft
Back-bay flat: weed flat, around 3 ft
Creek inflow: inflow / creek mouth, around 3 ft
Creek inflow: inflow / creek mouth, around 3 ft

Public access & boat ramps

Blue Lake N — ramp (unimproved surface)
Blue Lake S — ramp (unimproved surface)

Access data: Washington WDFW — Water Access Sites. Confirm conditions and fees locally before you launch.

Blue Lake fishing regulations

Season dates, license requirements, and size and bag limits for Washington waters are set by the Washington Department of Fish and Wildlife — and special regulations can apply to Blue Lake specifically, so confirm the current rules before you fish.

Check the official Washington fishing regulations →

Common questions

How deep is Blue Lake?

Blue Lake is about 65 ft (20 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.

What fish are in Blue Lake?

Anglers target rainbow trout, largemouth bass, smallmouth bass, yellow perch, bluegill, crappie on Blue Lake.

Where is the best fishing spot on Blue Lake?

Shallow bay flat is the top-rated area: a weed flat in about 8 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Blue Lake?

For rainbow 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.

What are the fishing regulations for Blue Lake?

Fishing on Blue Lake is regulated by the Washington Department of Fish and Wildlife. Check the official Washington regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.

Nearby waters

Fish Lake 5 mi · Aeneas Lake 8 mi · Blue Lake 9 mi · Conconully Reservoir 10 mi · Spectacle Lake 11 mi · Whitestone Lake 13 mi · Palmer Lake 15 mi · Wannacut Lake 16 mi · Green Lake 16 mi · Frank Lake 24 mi, BC · Osoyoos Lake 24 mi, WA/BC · Kilpoola Lake 25 mi, BC

See how Blue Lake stacks up: best largemouth bass lakes in Washington · best smallmouth bass lakes in Washington · best crappie lakes in Washington · best bluegill lakes in Washington

More water nearby: Okanogan County fishing maps (21 charts). Browse all Washington fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.