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28-acre lake in LaGrange County, Indiana. The lake tops out around 50 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. The season-by-season read for each species follows, from the map's own numbers.
There are 1.6 miles of drawn shoreline to work. The basin is a simple one (shoreline index 1.1) — close to a bowl, so the structure on the chart matters more than the bank. The shallow band under 15 ft claims about 15% of the surface — that's where the groceries are. Tip to tip the water measures near 0.6 mi with a 0.4-mi widest point. It sits in LaGrange County. North Twin Lake sits 1 mi northeast — the closest neighbouring chart.
Come spring, look for largemouth bass tight to the bank in 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 15 to 35 ft. If you only fish one area, make it Shallow bay flat: a feeding flat around 7 ft that scores prime in spring. Best bite is early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (7 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Main-lake point (18 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (18 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (45 ft) | Blade bait, Jigging spoon |
When the water first warms, crappie slide up into 2 to 8 ft. Summer is a 10 to 25 ft game here, winter a 15 to 35 ft one. Start at Dock / pier line. It's a dock line holding about 8 ft of water and rates prime come spring. The feeding windows run early morning and the evening. Keep a jig trolled/spider-rigged or a small crankbait (trolled) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Dock / pier line (8 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Dock / pier line (10 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Dock / pier line (8 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Deep basin (50 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Come spring, look for bluegill tight to the bank in 1 to 6 ft. Expect a summer slide to 4 to 15 ft, then a winter hold in 10 to 25 ft. Start at Dock / pier line. It's a dock line holding about 4 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A small sponge spider (fly) or a micro tube jig is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Dock / pier line (4 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Dock / pier line (8 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (7 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (50 ft) | Tungsten ice jig + plastic, Tiny spoon |
Come spring, look for channel catfish tight to the bank in 3 to 12 ft. They move out to 8 to 25 ft in summer and finish the year down in 20 to 40 ft. If you only fish one area, make it Shallow bay flat: a feeding flat around 7 ft that scores good in summer. Best bite is after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (7 ft) | |
| Summer | 8 to 25 ft | night & dusk | Shallow bay flat (7 ft) | |
| Fall | 10 to 30 ft | dusk | Shallow bay flat (7 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (50 ft) |
South Twin Lake carries 11 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 50 ft down.
Season dates, license requirements, and size and bag limits for Indiana waters are set by the Indiana DNR — and special regulations can apply to South Twin Lake specifically, so confirm the current rules before you fish.
Check the official Indiana fishing regulations →
South Twin Lake is about 50 ft (15 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target largemouth bass, crappie, bluegill, channel catfish on South Twin Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species listed for the nearest surveyed lakes in the region, filtered to this lake's depth and habitat.
Shallow bay flat is the top-rated area: a feeding flat in about 7 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
For largemouth bass, 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 South Twin Lake is regulated by the Indiana DNR. Check the official Indiana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
North Twin Lake 1 mi · Aldrich Lake 4 mi, MI · Minnewaukan Lake 6 mi, MI · Tamarack Lake 7 mi, MI · Klinger Lake 7 mi, MI · Thompson Lake 7 mi, MI · Shipshewana Lake 8 mi · Sweet Lake 8 mi, MI · Omena Lake 8 mi, MI · Marl Lake 8 mi, MI · Cass Lake 9 mi · Emma Lake 9 mi
See how South Twin Lake stacks up: best largemouth bass lakes in Indiana · best crappie lakes in Indiana · best bluegill lakes in Indiana · best channel catfish lakes in Indiana
More water nearby: LaGrange County fishing maps (20 charts). Browse all Indiana fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.