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Rating depth structure for smallmouth bass.
Shared by DepthScout anglers. Exact spots stay private, always.
81-acre lake in Florence County, Wisconsin. The lake tops out around 45 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Here's the year, species by species, as the scoring engine sees it.
The drawn water covers 81 acres wrapped in 1.4 miles of bank. At index 1.1 the outline is almost a bowl — read the depth changes, not the shoreline. About 41% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Figure 0.5 mi of water from one end to the other, 0.4 mi at the beam. It sits in Florence County. Its nearest charted neighbour, Grub Hoe Lake, is 1 mi to the southeast.
Spring rainbow trout on Lost Lake hold shallow, usually 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 8 to 40 ft. The chart's best answer is Shoreline break — drop-off, 20 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shoreline break (20 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Shoreline break (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Shoreline break (20 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Shoreline break (20 ft) | Jigging spoon, Tube jig (white) |
When the water first warms, smallmouth bass slide up into 3 to 12 ft. Summer is a 10 to 30 ft game here, winter a 20 to 45 ft one. Start at Shoreline break. It's a drop-off holding about 20 ft of water and rates prime come winter. The feeding windows run early morning and the evening. Keep a drop shot (goby/minnow) or a ned rig rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | open water | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Shoreline break (20 ft) | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Shoreline break (20 ft) | Jerkbait, Blade bait |
| Winter | 20 to 45 ft | midday | Shoreline break (20 ft) | Blade bait, Hair jig |
4 pieces of structure are mapped here — Deep basin, around 38 ft, is the deepest of them.
Season dates, license requirements, and size and bag limits for Wisconsin waters are set by the Wisconsin DNR — and special regulations can apply to Lost Lake specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Lost Lake is about 45 ft (14 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 rainbow trout, smallmouth bass on Lost 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.
Shoreline break is the top-rated area: a drop-off in about 20 ft of water that rates prime for smallmouth bass in winter. Open the map above to see every rated spot for each 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 Lost 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.
Grub Hoe Lake 1 mi · Lake Seventeen 2 mi · Reisner Lake 3 mi · Lake of Dreams 4 mi · Fay Lake 4 mi · Porcupine Lake 4 mi · Halsey Lake 4 mi · Perch Lake 5 mi · Savage Lake 5 mi · Long Lake 6 mi · Riley Lake 6 mi · Little Riley Lake 7 mi
See how Lost Lake stacks up: best smallmouth bass lakes in Wisconsin · best rainbow trout lakes in Wisconsin
More water nearby: Florence County fishing maps (61 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.