Lake depth chart
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166-acre lake near Okanogan County. The lake tops out around 85 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Every species below gets its seasonal read from the same numbers driving the chart.
On the chart, Patterson Lake draws 166 acres inside 2.7 miles of shoreline. Index 1.5 on the shoreline: a few honest points and pockets, nothing labyrinthine. Roughly 12% of the water is 15 ft or less, the band where the food chain lives. Call it 1.2 mi long by 0.3 mi wide at the broadest reach. The water lies in Okanogan County. Closest neighbour on DepthScout: Big Twin Lake, 2 mi east of here.
The spring pattern is a shallow one: brook trout in 2 to 15 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 3 to 20 ft for winter. The spot to know is Secondary point, a point in about 10 ft of water that rates prime for brook trout in spring. Plan around early morning and the evening in the warm months. Summer baits: a small spoon fished deep or a trolled lake-clear wobbler + worm gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Secondary point (10 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | open water | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Secondary point (10 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow bay flat (9 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring brown trout on Patterson Lake hold shallow, usually 3 to 25 ft. They move out to 25 to 60 ft in summer and finish the year down in 5 to 35 ft. Put Main-lake point first on the milk run — a point near 24 ft that grades prime for spring. The feeding windows run after dark and early morning. The summer box starts with a spoon at the thermocline or a deep stickbait (night).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Main-lake point (24 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 25 to 60 ft | night & dawn | Main-lake point (24 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Main-lake point (24 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | open water | Jigging spoon, Small stickbait (slow) |
The spring pattern is a shallow one: kokanee in 10 to 30 ft. Midsummer fish sit out in 30 to 70 ft before dropping to 20 to 80 ft for winter. The spot to know is Deep basin, a deep basin in about 84 ft of water that rates prime for kokanee in winter. Plan around early morning in the warm months. Summer baits: a dodger + pink/orange squid on downrigger or a kokanee bug + corn gets it done.
| 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 | Deep basin (84 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 | Deep basin (84 ft) | Small glow jig + corn or maggot, Tiny spoon |
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Secondary point, a point in the 10 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Secondary point (10 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Main-lake point (24 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (24 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | open water | Jigging spoon, Tube jig (white) |
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. Summer pushes them deeper, 4 to 15 ft, and winter fish settle into 10 to 25 ft. The spot to know is Shallow bay flat, a feeding flat in about 9 ft of water that rates prime for bluegill in summer. Warm-month bites cluster around early morning and the evening. Throw a small sponge spider (fly) or a micro tube jig until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (9 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (9 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (9 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Back-bay flat (11 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, crappie run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 15 to 35 ft. Back-bay flat is the standout, a feeding flat at roughly 11 ft, rated prime for summer crappie. Time it for early morning and the evening. You won't need more than a jig trolled/spider-rigged or a small crankbait (trolled) most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (9 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Back-bay flat (11 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Shallow bay flat (9 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | open water | Tungsten jig + soft plastic, Tiny jigging spoon |
Patterson Lake also holds largemouth bass (8 to 20 ft in summer), smallmouth bass (10 to 30 ft in summer), yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Patterson Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 84 ft down.
Access data: Washington WDFW — Water Access Sites. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| Sep 16 | Brown Trout | 2,150 | — |
| Jun 2 | Kokanee | 8,771 | — |
| Jun 2 | Kokanee | 16,229 | — |
| Sep 26, 2025 | Rainbow trout | 2,500 | — |
| Sep 9, 2025 | Brown Trout | 2,500 | — |
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 Patterson Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Patterson Lake is about 85 ft (26 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 brook trout, brown trout, kokanee, rainbow trout, bluegill, crappie, largemouth bass, smallmouth bass, yellow perch on Patterson Lake.
Deep basin is the top-rated area: a deep basin in about 84 ft of water that rates prime for kokanee in winter. Scroll up to the map for the complete spot list by species and season.
For brook 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, Patterson Lake was most recently stocked Sep 16 with 2,150 brown trout. The full stocking history is listed above.
Fishing on Patterson 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.
Big Twin Lake 2 mi · Pearrygin Lake 5 mi · Methow River 5 mi · Davis Lake 6 mi · Rainy Lake 23 mi · Conconully Reservoir 23 mi · Lake Chelan 27 mi · Fish Lake 27 mi · Green Lake 28 mi · Blue Lake 30 mi · Blue Lake 30 mi · Alta Lake 33 mi
See how Patterson 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. 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.