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54-acre lake near Thurston County. The lake tops out around 17 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. 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.
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 17 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Shallow bay flat (4 ft) | Inline spinner (silver), Small spoon |
| Summer | 5 to 17 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Deep basin (17 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 5 to 17 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Deep basin (17 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 3 to 17 ft chart-limited; documented 8 to 40 ft | dawn | Deep basin (17 ft) | Jigging spoon, Tube jig (white) |
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 chart-limited; documented 8 to 20 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 chart-limited; documented 15 to 35 ft | midday | Deep basin (17 ft) | Blade bait, Jigging spoon |
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 chart-limited; documented 10 to 30 ft | dawn & dusk | open water | Drop shot (goby/minnow), Ned rig |
| Fall | 5 to 17 ft chart-limited; documented 8 to 25 ft | midday & dawn | open water | Jerkbait, Blade bait |
| Winter | 5 to 17 ft chart-limited; documented 20 to 45 ft | midday | Deep basin (17 ft) | Blade bait, Hair jig |
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 chart-limited; documented 10 to 30 ft | dawn | Deep basin (17 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 5 to 17 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (17 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 5 to 17 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (17 ft) | Tungsten jig + spikes, Rattle spoon (small) |
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 chart-limited; documented 6 to 18 ft | midday | Back-bay flat (5 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 5 to 17 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (17 ft) | Tungsten ice jig + plastic, Tiny spoon |
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.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| 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 chart-limited; documented 10 to 25 ft | dawn & dusk | Back-bay flat (5 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 5 to 17 ft chart-limited; documented 8 to 20 ft | dawn | Back-bay flat (5 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 5 to 17 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (17 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Deep Lake carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 17 ft down.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| Apr 22 | Rainbow trout | 2,500 | — |
| Apr 20 | Rainbow trout | 3,000 | — |
| Apr 17 | Rainbow trout | 3,005 | — |
Source: WDFW fish-stocking reports, retrieved 2026-09-23.
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 →
Deep Lake is about 17 ft (5 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target rainbow trout, largemouth bass, smallmouth bass, yellow perch, bluegill, crappie 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.
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.
Yes — per WDFW fish-stocking reports records, Deep Lake was most recently stocked Apr 22 with 2,500 rainbow trout. The full stocking history is listed above.
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.
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 · Budd Inlet 14 mi · Lake Lawrence 16 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. See every water on DepthScout. Bathymetry: published agency survey data. 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.