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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
5-acre lake near Lake County. The lake tops out around 19 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. The season-by-season read for each species follows, from the map's own numbers.
Traced from the shoreline, Jouppi runs 5 acres with 0.5 miles of edge. The shoreline is moderately structured (index 1.5) — enough points and pockets to pattern. Littoral water — the productive band under ~15 ft — makes up 66% of this chart, as modeled. You'll find it in Lake County. The nearest mapped water is Round Island, 2 mi to the northeast.
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 6 to 19 ft, and winter fish settle into 3 to 19 ft. Deep basin is the standout, a deep basin at roughly 16 ft, rated prime for summer brook trout. Time it for early morning and the evening. You won't need more than a small spoon fished deep or a trolled lake-clear wobbler + worm most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 19 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (16 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 19 ft chart-limited; documented 3 to 20 ft | dawn | Deep basin (16 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring puts rainbow trout in skinny water — 5 to 19 ft is the zone. Summer fish stay in 5 to 19 ft, and winter fish hold in 4 to 19 ft. Winter rainbow trout concentrate at Break off the point, a prime-rated drop-off around 9 ft. Warm-month bites cluster around early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 19 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 5 to 19 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (9 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 5 to 19 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 4 to 19 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (9 ft) | Jigging spoon, Tube jig (white) |
The chart marks 3 structure features on Jouppi; the deepest is Deep basin at about 16 ft.
| Date | Species | Count | Size |
|---|---|---|---|
| 2025* | Brook Trout (yearlings) | 500 | — |
| 2024* | Rainbow Trout (yearlings) | 500 | — |
* Approximate date (agency reports month or season only). Source: Minnesota DNR LakeFinder stocking reports, retrieved 2026-09-11.
Season dates, license requirements, and size and bag limits for Minnesota waters are set by the Minnesota DNR — and special regulations can apply to Jouppi specifically, so confirm the current rules before you fish.
Check the official Minnesota fishing regulations →
Jouppi is about 19 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, rainbow trout on Jouppi.
Break off the point is the top-rated area: a drop-off in about 9 ft of water that rates prime for rainbow trout in winter. The interactive chart above rates every spot for each 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 Minnesota DNR LakeFinder stocking reports records, Jouppi was most recently stocked 2025 with 500 brook trout (yearlings). The full stocking history is listed above.
Fishing on Jouppi is regulated by the Minnesota DNR. Check the official Minnesota regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Round Island 2 mi · Delay 3 mi · Crosscut 3 mi · Shoofly 3 mi · Dumbbell 3 mi · Divide 3 mi · Tanner 4 mi · Soup 4 mi · Eighteen 4 mi · Trappers 4 mi · Osier 4 mi · Section Eight 4 mi
See how Jouppi stacks up: best rainbow trout lakes in Minnesota · best brook trout lakes in Minnesota
More water nearby: Lake County fishing maps (313 charts). Browse all Minnesota fishing maps. 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.