Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for brook trout.
Shared by DepthScout anglers. Exact spots stay private, always.
20-acre lake in Vilas County, Wisconsin. The lake tops out around 21 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. What follows comes from the same scoring engine that paints the spots above.
Drawn out, this is 20 acres of water rimmed by 0.9 miles of bank. A shoreline index of 1.3 says round and simple: fish relate to depth changes here, not shoreline features. About 47% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. End to end it runs roughly 0.3 mi, about 0.2 mi across. The water lies in Vilas County. For a second option, Firefly Lake lies 0 mi southeast.
Spring puts brook trout in skinny water — 2 to 15 ft is the zone. Warm water sends them out to 6 to 21 ft; cold water stacks them in 3 to 20 ft. Deep basin is the standout, a deep basin at roughly 18 ft, rated prime for summer brook trout. Plan around early morning and the evening in the warm months. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 21 ft | dawn & dusk | Deep basin (18 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | open water | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (18 ft) | Small jigging spoon, Tungsten jig + plastic |
Little John Junior Lake carries 4 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 18 ft down.
| Date | Species | Count | Size |
|---|---|---|---|
| 2025* | Brown Trout (yearling) | 450 | ~9" |
| 2024* | Brown Trout (yearling) | 500 | ~9.1" |
* 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 John Junior Lake specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Little John Junior 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 brook trout on Little John Junior 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 18 ft of water that rates prime for brook trout in summer. Scroll up to the map for the complete spot list by species and season.
For brook 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.
Yes — per Wisconsin DNR fish-stocking summary records, Little John Junior Lake was most recently stocked 2025 with 450 brown trout (yearling). The full stocking history is listed above.
Fishing on Little John Junior 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.
Firefly Lake 0 mi · Emerald Lake 1 mi · Little John Lake 1 mi · Mann Lake 1 mi · Fallison Lake 1 mi · Crystal Lake 1 mi · Big Muskellunge Lake 1 mi · Wildwood Lake 1 mi · Allequash Lake 2 mi · Midge Lake 3 mi · Scaffold Lake 3 mi · Vandercook Lake 3 mi
See how Little John Junior Lake stacks up: best brook trout lakes in Wisconsin
More water nearby: Vilas County fishing maps (507 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.