Deep Lake Depth Map & Fishing Spots (Thurston 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 Deep 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 Deep Lake on the board.

Fishing Deep Lake: what the data says

54-acre lake near Thurston County. The lake tops out around 17 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. Species by species, here's what the data says the year looks like.

Deep Lake maps at 54 acres behind 1.2 miles of shoreline. A shoreline index of 1.1 says round and simple: fish relate to depth changes here, not shoreline features. 64% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 0.5 mi of water from one end to the other, 0.2 mi at the beam. Thurston County claims this one. Its nearest charted neighbour, Offutt Lake, is 4 mi to the east.

Rainbow Trout fishing at Deep Lake

Spring rainbow trout on Deep Lake hold shallow, usually 4 to 17 ft. Depth-wise the year is flat: 5 to 17 ft in summer, 3 to 17 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 17 ft that grades prime for winter. The feeding windows run early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.

Season	Depth	Best window	Start at	Go-to baits
Spring	4 to 17 ft	dawn & dusk	Shallow bay flat (4 ft)	Inline spinner (silver), Small spoon
Summer	5 to 17 ft	dawn & dusk	Deep basin (17 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	5 to 17 ft	dawn & dusk	Deep basin (17 ft)	Casting spoon, Jerkbait over shoals
Winter	3 to 17 ft	dawn	Deep basin (17 ft)	Jigging spoon, Tube jig (white)

Largemouth Bass fishing at Deep Lake

Come spring, look for largemouth bass tight to the bank in 2 to 10 ft. Expect a summer slide to 5 to 17 ft, then a winter hold in 5 to 17 ft. Start at Shallow bay flat. It's a weed flat holding about 4 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Shallow bay flat (4 ft)	Spinnerbait, Chatterbait
Summer	5 to 17 ft	dawn & dusk	Back-bay flat (5 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Shallow bay flat (4 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	5 to 17 ft	midday	Deep basin (17 ft)	Blade bait, Jigging spoon

Smallmouth Bass fishing at Deep Lake

When the water first warms, smallmouth bass slide up into 3 to 12 ft. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. If you only fish one area, make it Deep basin: a deep basin around 17 ft that scores good in winter. In summer the feeding windows fall in early morning and the evening. Keep a drop shot (goby/minnow) or a ned rig rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	dawn & dusk	open water	Ned rig, Tube jig
Summer	5 to 17 ft	dawn & dusk	open water	Drop shot (goby/minnow), Ned rig
Fall	5 to 17 ft	midday & dawn	open water	Jerkbait, Blade bait
Winter	5 to 17 ft	midday	Deep basin (17 ft)	Blade bait, Hair jig

Yellow Perch fishing at Deep Lake

The spring pattern is a shallow one: yellow perch in 3 to 12 ft. As the season builds they drop to 5 to 17 ft, wintering in 5 to 17 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Time it for early morning. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 12 ft	midday & dawn	Shallow bay flat (4 ft)	Small jig + curly tail, Perch-pattern micro crank
Summer	5 to 17 ft	dawn	Deep basin (17 ft)	Drop-shot micro plastics, Small spoon tipped with worm
Fall	5 to 17 ft	midday	Deep basin (17 ft)	Jigging spoon (small), Perch rig / spreader
Winter	5 to 17 ft	midday & dawn	Deep basin (17 ft)	Tungsten jig + spikes, Rattle spoon (small)

Bluegill fishing at Deep Lake

Come spring, look for bluegill tight to the bank in 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 5 to 17 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. Best bite is early morning and the evening. A small sponge spider (fly) or a micro tube jig is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	1 to 6 ft	midday & dusk	Shallow bay flat (4 ft)	1/32 oz jig + micro plastic, Tiny popper (evenings)
Summer	4 to 15 ft	dawn & dusk	Shallow bay flat (4 ft)	Small sponge spider (fly), Micro tube jig
Fall	5 to 17 ft	midday	Back-bay flat (5 ft)	Micro jig + waxworm, Small spoon tipped
Winter	5 to 17 ft	midday	Deep basin (17 ft)	Tungsten ice jig + plastic, Tiny spoon

Crappie fishing at Deep Lake

When the water first warms, crappie slide up into 2 to 8 ft. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. If you only fish one area, make it Deep basin: a deep basin around 17 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a jig trolled/spider-rigged or a small crankbait (trolled) rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 8 ft	midday & dawn	Shallow bay flat (4 ft)	1/16 oz jig + tube, Curly-tail grub
Summer	5 to 17 ft	dawn & dusk	Back-bay flat (5 ft)	Jig trolled/spider-rigged, Small crankbait (trolled)
Fall	5 to 17 ft	dawn	Back-bay flat (5 ft)	Jig + minnow combo, Small swimbait (1.5-2")
Winter	5 to 17 ft	midday	Deep basin (17 ft)	Tungsten jig + soft plastic, Tiny jigging spoon

Notable structure

Deep Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 17 ft down.

Deep basin: deep basin, around 17 ft
Back-bay flat: weed flat, around 5 ft
Shallow bay flat: weed flat, around 4 ft
Dock / pier line: dock line, around 0 ft

Public access & boat ramps

Boat launch — ramp

Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.

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

Check the official Washington fishing regulations →

Common questions

How deep is Deep Lake?

Deep Lake is about 17 ft (5 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 Deep Lake?

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

Where is the best fishing spot on Deep Lake?

Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.

When is the best time to fish Deep 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 Deep Lake?

Fishing on Deep 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

Offutt Lake 4 mi · Black Lake 7 mi · Ward Lake 7 mi · McIntosh Lake 7 mi · Pattison Lake 9 mi · Chambers Lake 9 mi · Hicks Lake 10 mi · Long Lake 10 mi · Lake Saint Clair 11 mi · Summit Lake 14 mi · Lake Lawrence 16 mi · Forbes Lake 20 mi

See how Deep 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: Thurston County fishing maps (14 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.