Lake depth chart
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59-acre lake near Loomis. The lake tops out around 5 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here's the year, species by species, as the scoring engine sees it.
The outline encloses 59 acres, worked by 2.4 miles of shoreline. The 2.3 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Figure 1.2 mi of water from one end to the other. Pacific County claims this one. Its nearest charted neighbour, Loomis Lake, is 1 mi to the north.
Spring rainbow trout on Island Lake hold shallow, usually 1 to 5 ft. Depth-wise the year is flat: 1 to 5 ft in summer, 1 to 5 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 5 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 | 1 to 5 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Shallow bay flat (2 ft) | Inline spinner (silver), Small spoon |
| Summer | 1 to 5 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Deep basin (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 1 to 5 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Deep basin (5 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 1 to 5 ft chart-limited; documented 8 to 40 ft | dawn | Deep basin (5 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for largemouth bass tight to the bank in 1 to 5 ft. Through summer count on 2 to 5 ft; the winter hold is 2 to 5 ft. Start at Shallow bay flat. It's a weed flat holding about 2 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 | 1 to 5 ft chart-limited; documented 2 to 10 ft | dawn & dusk | Shallow bay flat (2 ft) | Spinnerbait, Chatterbait |
| Summer | 2 to 5 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (2 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 1 to 5 ft chart-limited; documented 4 to 15 ft | midday & dawn | Shallow bay flat (2 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 2 to 5 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (5 ft) | Blade bait, Jigging spoon |
When the water first warms, smallmouth bass slide up into 1 to 5 ft. There's no big seasonal slide here — summer means 2 to 5 ft, winter 2 to 5 ft. If you only fish one area, make it Deep basin: a deep basin around 5 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 | 1 to 5 ft chart-limited; documented 3 to 12 ft | dawn & dusk | open water | Ned rig, Tube jig |
| Summer | 2 to 5 ft chart-limited; documented 10 to 30 ft | dawn & dusk | open water | Drop shot (goby/minnow), Ned rig |
| Fall | 2 to 5 ft chart-limited; documented 8 to 25 ft | midday & dawn | open water | Jerkbait, Blade bait |
| Winter | 2 to 5 ft chart-limited; documented 20 to 45 ft | midday | Deep basin (5 ft) | Blade bait, Hair jig |
The spring pattern is a shallow one: yellow perch in 1 to 5 ft. The depth story barely changes: 2 to 5 ft through summer, 2 to 5 ft in winter. Top water on the chart: Shallow bay flat, a weed flat in the 2 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 | 1 to 5 ft chart-limited; documented 3 to 12 ft | midday & dawn | Shallow bay flat (2 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 2 to 5 ft chart-limited; documented 10 to 30 ft | dawn | Deep basin (5 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 2 to 5 ft chart-limited; documented 12 to 35 ft | midday | Deep basin (5 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 2 to 5 ft chart-limited; documented 15 to 35 ft | midday & dawn | Deep basin (5 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Come spring, look for bluegill tight to the bank in 1 to 5 ft. Through summer count on 1 to 5 ft; the winter hold is 2 to 5 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 2 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 5 ft chart-limited; documented 1 to 6 ft | midday & dusk | Shallow bay flat (2 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 1 to 5 ft chart-limited; documented 4 to 15 ft | dawn & dusk | Shallow bay flat (2 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 2 to 5 ft chart-limited; documented 6 to 18 ft | midday | Shallow bay flat (2 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 2 to 5 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (5 ft) | Tungsten ice jig + plastic, Tiny spoon |
When the water first warms, crappie slide up into 1 to 5 ft. There's no big seasonal slide here — summer means 2 to 5 ft, winter 2 to 5 ft. If you only fish one area, make it Deep basin: a deep basin around 5 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 | 1 to 5 ft chart-limited; documented 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 2 to 5 ft chart-limited; documented 10 to 25 ft | dawn & dusk | Shallow bay flat (2 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 2 to 5 ft chart-limited; documented 8 to 20 ft | dawn | Shallow bay flat (2 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 2 to 5 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (5 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Count 3 structure marks on this chart. The deepest, Deep basin, sits near 5 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 Island Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Island Lake is about 5 ft (2 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 Island Lake.
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. The map above holds the full rated-spot list for every 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.
Fishing on Island 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.
Loomis Lake 1 mi · Black Lake 8 mi · Willapa Bay 11 mi · Willapa River 21 mi · Columbia River - Reach 1 of 5 25 mi · Grays Harbor 35 mi · Duck Lake 39 mi · Lake Aberdeen 41 mi · Silver Lake 61 mi · Summit Lake 62 mi · Deep Lake 63 mi · Lost Lake 63 mi
See how Island 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
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.