Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for rainbow trout.
Shared by DepthScout anglers. Exact spots stay private, always.
6-acre lake in Langlade County, Wisconsin. The lake tops out around 12 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. Here's the year, species by species, as the scoring engine sees it.
Harper Springs maps at 6 acres behind 0.8 miles of shoreline. The 2.4 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Call it 0.3 mi long. It sits in Langlade County. Its nearest charted neighbour, Harper Lake, is 1 mi to the west.
When the water first warms, rainbow trout slide up into 3 to 12 ft. There's no big seasonal slide here — summer means 3 to 12 ft, winter 2 to 12 ft. If you only fish one area, make it Break off the point: a drop-off around 5 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 3 to 12 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 3 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 12 ft | dawn | Break off the point (5 ft) | Jigging spoon, Tube jig (white) |
Harper Springs carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 10 ft down.
Season dates, license requirements, and size and bag limits for Wisconsin waters are set by the Wisconsin DNR — and special regulations can apply to Harper Springs specifically, so confirm the current rules before you fish.
Check the official Wisconsin fishing regulations →
Harper Springs is about 12 ft (4 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 on Harper Springs. 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.
Break off the point is the top-rated area: a drop-off in about 5 ft of water that rates prime for rainbow trout in winter. Scroll up to the map for the complete spot list by 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 Harper Springs 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.
Harper Lake 1 mi · Grass Lake 2 mi · Big Twin Lake 2 mi · Crystal Lake 2 mi · Pickerel Lake 2 mi · Horseshoe Lake 2 mi · Arbutus Lake 2 mi · Lake Ethel 3 mi · Crane Lake 3 mi · Tekakwitha Lake 3 mi · Sunken Lake 3 mi · Eddy Lake 3 mi
See how Harper Springs stacks up: best rainbow trout lakes in Wisconsin
More water nearby: Langlade County fishing maps (156 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.