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Rating depth structure for largemouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
17-acre lake in Washburn County, Wisconsin. The lake tops out around 27 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. Here is how the season plays out for each species, straight from the data behind the map.
Harrison Lake maps at 17 acres behind 0.7 miles of shoreline. At index 1.1 the outline is almost a bowl — read the depth changes, not the shoreline. Roughly 39% of the water is 15 ft or less as modeled, the band where the food chain lives. Washburn County claims this one. If the bite dies, Randall Lake is 1 mi to the northwest.
Spring largemouth bass on Harrison Lake hold shallow, usually 2 to 10 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 8 to 27 ft. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. 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 (3 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Shoreline break (12 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 | 8 to 27 ft | midday | Shoreline break (12 ft) | Blade bait, Jigging spoon |
The chart marks 4 structure features on Harrison Lake; the deepest is Deep basin at about 23 ft.
Season dates, license requirements, and size and bag limits for Wisconsin waters are set by the Wisconsin DNR — and special regulations can apply to Harrison Lake specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Harrison Lake is about 27 ft (8 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 Harrison 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 Harrison 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.
Randall Lake 1 mi · Tozer Lake 3 mi · Schullenberger Lake 4 mi · Cyclone Lake 4 mi · Spooner Lake 4 mi · Lutz Lake 4 mi · Little Spooner Lake 5 mi · Evergreen Lake 5 mi · Shell Lake 5 mi · Cranberry Lake 5 mi · Cable Lake 5 mi · Oak Lake 5 mi
See how Harrison Lake stacks up: best largemouth bass lakes in Wisconsin
More water nearby: Washburn County fishing maps (210 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.