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Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
17-acre lake in Oneida County, Wisconsin. The lake tops out around 21 ft. These contours are modeled — built from the real shoreline and the water's maximum depth — so read them as a guide, never as navigation. Here's the year, species by species, as the scoring engine sees it.
On the chart, Island Lake draws 17 acres inside 0.8 miles of shoreline. Nearly circular (index 1.4), so the story is the bottom, not the bank. 64% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. The basin spans about 0.3 mi end to end. The water lies in Oneida County. Closest neighbour on DepthScout: Fawn Lake, 0 mi southwest of here.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 6 to 21 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring largemouth bass. Time it for early morning and the evening. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (3 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shoreline break (9 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Shallow bay flat (3 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 6 to 21 ft | midday | Shoreline break (9 ft) | Blade bait, Jigging spoon |
Island Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 18 ft down.
Season dates, license requirements, and size and bag limits for Wisconsin waters are set by the Wisconsin DNR — and special regulations can apply to Island Lake specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Island Lake is about 21 ft (6 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target largemouth bass on Island Lake. These come from the Wisconsin DNR's per-lake fish listing; where the DNR lists a group (panfish, catfish, trout) the specific species are resolved from Wisconsin's fish distribution by the lake's location, depth and habitat.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by 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 Island Lake is regulated by the Wisconsin DNR. Check the official Wisconsin regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Fawn Lake 0 mi · Lumen Lake 1 mi · Whitey Lake 1 mi · Wind Pudding Lake 1 mi · Muskie Lake 1 mi · Tyler Lake 1 mi · McNaughton Lake 2 mi · Little Muskie Lake 2 mi · Corner Lake 2 mi · Long Lake 2 mi · Beaver Lake 2 mi · Hawk Lake 2 mi
See how Island Lake stacks up: best largemouth bass lakes in Wisconsin
More water nearby: Oneida County fishing maps (372 charts). Browse all Wisconsin fishing maps or see every water on DepthScout. 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.