South Twin Lake Depth Map & Fishing Spots (IN)

Lake depth chart

South Twin Lake, IN

Max 50 ft

Today's read

Where to start

Fall shad migration window is on — see the hatch outlook

Target species

Species estimated from nearby surveyed lakes. No fish-species survey is on record for this water, so these species aren't a confirmed catch list. They're an informed estimate: the species listed for the nearest surveyed lakes in the same region, kept only where they fit this lake's depth and habitat. Treat them as what's likely present. (The depth chart itself is real surveyed bathymetry.) How we estimate species →

Hatch outlook

Fall shad migrationActive window

Typical here: Sep 5 – Nov 15 · the Midwest edition — a ~10° drop off summer temps starts it mid-September and it builds as the water falls through the 60s; gizzard shad tolerate cold, so it outlasts the southern threadfin version

adultall day, best mid-afternoon as the sun warms the bait — the rare pattern where you can sleep in — follow the bait, not the structure: gulls, herons and egrets diving or stacked in a creek mean the shad (and the bass) are there — run and gun until you find flickering bait or surface activity

Concentrates hard but unevenly — whole stretches go empty while one creek loads up. The birds are the map.

Creek-arm run-and-gun: lipless crankbait and squarebill through the flats and ditches, walking topwater over surface schools, a 3/8 oz spinnerbait around isolated cover along the creek channel. Downsize to match the young-of-year shad; jerkbaits are the sleeper.

The event happens over backs of creek arms, pockets and ditches, secondary points on the way in, and main-lake flats where the bait balls roam

Next on this water

Spring crawfish emergence · forageMar 15 – May 31 · in ~5 months

Shad spawn · baitfishMay 1 – Jun 30 · in ~7 months

Bluegill spawn (bream-bed bass) · forageMay 20 – Aug 5 · in ~7 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are generated from real agency depth surveys; use the survey badge for the provider, dataset, datum and measured coverage. Never use for navigation. Always check local regulations.

Depth · ft

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Recent catches at South Twin Lake

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Fishing South Twin Lake: what the data says

28-acre lake in LaGrange County, Indiana. The lake tops out around 50 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. 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.

Largemouth Bass fishing at South Twin Lake

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	open water	Blade bait, Jigging spoon

Crappie fishing at South Twin Lake

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	open water	Tungsten jig + soft plastic, Tiny jigging spoon

Bluegill fishing at South Twin Lake

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	Shallow bay flat (7 ft)	Tungsten ice jig + plastic, Tiny spoon

Channel Catfish fishing at South Twin Lake

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
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	Break off the point (45 ft)

Cisco (Lake Herring) fishing at South Twin Lake

Start shallow in spring: cisco (lake herring) sit in 10 to 40 ft that time of year. Summer pushes them deeper, 15 to 50 ft, and winter fish settle into 15 to 50 ft. The spot to know is Deep basin, a deep basin in about 50 ft of water that rates prime for cisco (lake herring) in summer. Warm-month bites cluster around early morning. Throw a vertical flutter spoon (small) or a drop-shot micro plastic until the fish tell you otherwise.

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	10 to 40 ft	dawn & dusk	Deep basin (50 ft)	Small silver spoon, Tiny swim jig (white)
Summer	15 to 50 ft chart-limited; documented 40 to 80 ft	dawn	Deep basin (50 ft)	Vertical flutter spoon (small), Drop-shot micro plastic
Fall	5 to 25 ft	dusk & dawn	open water	Small casting spoon, Inline spinner (silver)
Winter	15 to 50 ft chart-limited; documented 20 to 60 ft	dawn	Deep basin (50 ft)	Small jigging spoon (glow/silver), Tungsten jig + minnow head

Rock Bass fishing at South Twin Lake

Start shallow in spring: rock bass sit in 2 to 10 ft that time of year. Summer pushes them deeper, 5 to 20 ft, and winter fish settle into 12 to 30 ft. The spot to know is Main-lake point, a point in about 18 ft of water that rates prime for rock bass in summer. Warm-month bites cluster around the evening. Throw a ned rig (small) or a marabou jig until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	midday & dawn	Dock / pier line (8 ft)	1/16 oz jig + grub, Small inline spinner
Summer	5 to 20 ft	dusk	Main-lake point (18 ft)	Ned rig (small), Marabou jig
Fall	8 to 22 ft	midday	Main-lake point (18 ft)	Small tube jig, Inline spinner
Winter	12 to 30 ft	midday	open water	Tungsten jig + plastic, Small spoon + spike

South Twin Lake also holds smallmouth bass (10 to 30 ft in summer), yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.

Notable structure

South Twin Lake carries 11 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 50 ft down.

Deep basin: deep basin, around 50 ft
Break off the point: drop-off, around 45 ft
Main-lake point: point, around 18 ft
Dock / pier line: dock line, around 10 ft
Dock / pier line: dock line, around 8 ft
Shallow bay flat: feeding flat, around 7 ft
Back-bay flat: feeding flat, around 7 ft
Dock / pier line: dock line, around 6 ft
Dock / pier line: dock line, around 6 ft
Dock / pier line: dock line, around 4 ft
Dock / pier line: dock line, around 4 ft

South Twin Lake fishing regulations

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 →

Common questions

How deep is South Twin Lake?

South Twin Lake is about 50 ft (15 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.

What fish are in South Twin Lake?

Anglers target largemouth bass, crappie, bluegill, channel catfish, cisco (lake herring), rock bass, smallmouth bass, yellow perch 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.

Where is the best fishing spot on South Twin Lake?

Deep basin is the top-rated area: a deep basin in about 50 ft of water that rates prime for cisco (lake herring) in summer. Open the map above to see every rated spot for each species and season.

When is the best time to fish South Twin Lake?

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.

What are the fishing regulations for South Twin Lake?

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.

Nearby waters

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 smallmouth bass lakes in Indiana · best crappie lakes in Indiana · best bluegill lakes in Indiana

More water nearby: LaGrange County fishing maps (20 charts). Browse all Indiana 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.

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