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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
10-acre lake near St. Louis County. The lake tops out around 34 ft. The depth chart comes from Minnesota Department of Natural Resources bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from the Minnesota DNR survey of 1979, a decades-old survey (the DNR's original lake-survey map). What follows comes from the same scoring engine that paints the spots above.
Regenbogen maps at 10 acres behind 0.6 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. Littoral water — the productive band under ~15 ft — makes up 80% of this chart. The basin spans about 0.3 mi end to end. St. Louis County claims this one. Its nearest charted neighbour, First, is 0 mi to the southwest.
Early season brook trout use the shallows, holding in 2 to 15 ft. Summer is a 10 to 30 ft game here, winter a 3 to 20 ft one. The chart's best answer is Deep basin — deep basin, 30 ft, prime for summer. Best bite is early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Deep basin (30 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Break off the point (20 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring rainbow trout on Regenbogen hold shallow, usually 5 to 20 ft. They move out to 8 to 30 ft in summer and finish the year down in 7 to 34 ft. Put Break off the point first on the milk run — a drop-off near 20 ft that grades prime for winter. The feeding windows run early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
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 20 ft | dawn & dusk | Break off the point (20 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 34 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (20 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 7 to 34 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (20 ft) | Jigging spoon, Tube jig (white) |
The chart marks 3 structure features on Regenbogen; the deepest is Deep basin at about 30 ft.
| Date | Species | Count | Size |
|---|---|---|---|
| 2025* | Brook Trout (fingerlings) | 550 | — |
| 2024* | Splake (fingerlings) | 611 | — |
* 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 Regenbogen specifically, so confirm the current rules before you fish.
Check the official Minnesota fishing regulations →
Regenbogen is about 34 ft (10 m) deep at its deepest point. The depth data here comes from the Minnesota DNR survey of 1979, a decades-old survey (the DNR's original lake-survey map).
Anglers target brook trout, rainbow trout on Regenbogen.
Break off the point is the top-rated area: a drop-off in about 20 ft of water that rates prime for rainbow trout in winter. Every other rated spot, per species and season, is on the map above.
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, Regenbogen was most recently stocked 2025 with 550 brook trout (fingerlings). The full stocking history is listed above.
Fishing on Regenbogen 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.
First 0 mi · South Hegman 1 mi · Nels 1 mi · North Hegman 2 mi · Tee 2 mi · Fenske 2 mi · Agassa 3 mi · Slim 3 mi · Sletten 3 mi · Everett 3 mi · Little Sletten 3 mi · Grassy 3 mi
See how Regenbogen stacks up: best rainbow trout lakes in Minnesota · best brook trout lakes in Minnesota
More water nearby: St. Louis County fishing maps (429 charts). Browse all Minnesota fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.