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Rating depth structure for lake trout.
Shared by DepthScout anglers. Exact spots stay private, always.
22-acre lake in Barron County, Wisconsin. The lake tops out around 52 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. The rest of this page walks each species through its year, using the map's own scoring.
The drawn water covers 22 acres wrapped in 0.9 miles of bank. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. About 25% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 0.4 mi long. It sits in Barron County. If the bite dies, Granite Lake is 1 mi to the northwest.
When the water first warms, lake trout slide up into 10 to 40 ft. By summer they slide out to 16 to 52 ft, and by winter most fish are in 13 to 52 ft. If you only fish one area, make it Deep basin: a deep basin around 44 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a white tube jig (deep) or a magnum spoon on downrigger rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Shoreline break (23 ft) | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 16 to 52 ft | dawn | Deep basin (44 ft) | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 10 to 50 ft | dusk & dawn | Shoreline break (23 ft) | Heavy casting spoon, Jigging rap over reefs |
| Winter | 13 to 52 ft | dawn | Deep basin (44 ft) | White tube jig, Airplane jig |
The chart marks 4 structure features on Little Granite Lake; the deepest is Deep basin at about 44 ft.
| Date | Species | Count | Size |
|---|---|---|---|
| 2025* | Rainbow Trout (adult (broodstock-age-3yr)) | 75 | ~18.1" |
| 2025* | Rainbow Trout (large fingerling) | 1,300 | ~6.7" |
| 2025* | Rainbow Trout (yearling) | 2,961 | ~9" |
| 2024* | Rainbow Trout (adult (broodstock-age-3yr)) | 170 | ~18.1" |
| 2024* | Rainbow Trout (yearling) | 1,725 | ~8.8" |
* Approximate date (agency reports month or season only). Source: Wisconsin DNR fish-stocking summary, retrieved 2026-08-18.
Season dates, license requirements, and size and bag limits for Wisconsin waters are set by the Wisconsin DNR — and special regulations can apply to Little Granite Lake specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Little Granite Lake is about 52 ft (16 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 lake trout on Little Granite 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.
Deep basin is the top-rated area: a deep basin in about 44 ft of water that rates prime for lake trout in summer. The interactive chart above rates every spot for each species and season.
For lake trout, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Yes — per Wisconsin DNR fish-stocking summary records, Little Granite Lake was most recently stocked 2025 with 75 rainbow trout (adult (broodstock-age-3yr)). The full stocking history is listed above.
Fishing on Little Granite 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.
Granite Lake 1 mi · Little Dummy Lake 1 mi · Big Dummy Lake 1 mi · Duck Lake 1 mi · Buck Lake 2 mi · Wildcat Lake 2 mi · Greeley Lake 2 mi · Spring Lake 2 mi · Beaver Dam Lake 3 mi · Chain Lakes 3 mi · Little Silver Lake 3 mi · Sylvan Lake 3 mi
See how Little Granite Lake stacks up: best lake trout lakes in Wisconsin
More water nearby: Barron County fishing maps (103 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.