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2,991-acre lake near Castle Rock. The lake tops out around 10 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. Every species below gets its seasonal read from the same numbers driving the chart.
There are 14.3 miles of drawn shoreline to work, with 2 islands in the mix. An index of 2.3 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. The basin spans about 3.8 mi end to end and 1.7 mi across at its widest. Cowlitz County claims this one. Its nearest charted neighbour, Cowlitz River, is 13 mi to the north.
Spring largemouth bass on Silver Lake hold shallow, usually 2 to 10 ft. Depth-wise the year is flat: 3 to 10 ft in summer, 3 to 10 ft once it turns cold. The chart's best answer is Break off the point — drop-off, 7 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a texas-rigged 10" worm or a deep-diving crankbait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (1 ft) | Spinnerbait, Chatterbait |
| Summer | 3 to 10 ft | dawn & dusk | Break off the point (7 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 3 to 10 ft | midday & dawn | Main-lake point (1 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 3 to 10 ft | midday | Break off the point (7 ft) | Blade bait, Jigging spoon |
Early season crappie use the shallows, holding in 2 to 8 ft. Expect a summer slide to 3 to 10 ft, then a winter hold in 3 to 10 ft. Put Deep basin first on the milk run — a deep basin near 10 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Dock / pier line (2 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 3 to 10 ft | dawn & dusk | Break off the point (7 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 3 to 10 ft | dawn | Break off the point (7 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 3 to 10 ft | midday | Deep basin (10 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Early season bluegill use the shallows, holding in 1 to 6 ft. Summer is a 3 to 10 ft game here, winter a 3 to 10 ft one. The chart's best answer is Shallow bay flat — weed flat, 1 ft, prime for spring. Best bite is early morning and the evening. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (1 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 3 to 10 ft | dawn & dusk | Dock / pier line (3 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 10 ft | midday | Break off the point (7 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 10 ft | midday | Deep basin (10 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, yellow perch run shallow here, mostly 3 to 10 ft. Summer keeps them at 3 to 10 ft, and they winter in 3 to 10 ft. Deep basin is the standout, a deep basin at roughly 10 ft, rated prime for fall yellow perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | midday & dawn | Shallow bay flat (1 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 10 ft | dawn | Deep basin (10 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 10 ft | midday | Deep basin (10 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 10 ft | midday & dawn | Deep basin (10 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, common carp slide up into 2 to 10 ft. There's no big seasonal slide here — summer means 2 to 10 ft, winter 3 to 10 ft. Start at Deep basin. It's a deep basin holding about 10 ft of water and rates prime come winter. The feeding windows run early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (1 ft) | |
| Summer | 2 to 10 ft | dawn & dusk | Shallow bay flat (1 ft) | |
| Fall | 3 to 10 ft | midday | Deep basin (10 ft) | |
| Winter | 3 to 10 ft | midday | Deep basin (10 ft) |
Structure-wise the chart holds 13 features, led in depth by Deep basin at roughly 10 ft.
Access data: Washington WDFW — Water Access Sites. Confirm conditions and fees locally before you launch.
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 Silver Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Silver Lake is about 10 ft (3 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target largemouth bass, crappie, bluegill, yellow perch, common carp on Silver Lake.
Break off the point is the top-rated area: a drop-off in about 7 ft of water that rates prime for largemouth bass in winter. The interactive chart above rates every spot for each species and season.
For largemouth bass, 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.
Fishing on Silver 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.
Cowlitz River 13 mi · Merrill Lake 26 mi · Riffe Lake 27 mi · Horseshoe Lake 28 mi · Battle Ground Lake 37 mi · Clear Lake 39 mi · McIntosh Lake 40 mi · Lake Lawrence 40 mi · Elbow Lake 40 mi · Columbia River - Reach 1 of 5 41 mi · Mineral Lake 42 mi · Deep Lake 43 mi
See how Silver Lake stacks up: best largemouth bass lakes in Washington · best crappie lakes in Washington · best bluegill lakes in Washington · best yellow perch lakes in Washington
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.