2017
WalleyeLake Michigan · Large Fingerling
6007.0 in average
LakeList
FavoritesStateWisconsin
South Twin Lake
Enhanced dataInteractive depth contours
South Twin LakeWashburn County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Modeled depth estimate · Not a survey · Not for navigation
Source: LakeList depth modelmedium confidence · QA passed · Select a contour to inspect its mapped depthModeled depth estimate: contours computed from the lake's shoreline shape and its documented 29-ft maximum depth (depth grows with distance from shore, calibrated to the documented mean depth where available). This is a smooth mathematical model, not a survey - real holes, bars, and drop-offs will differ. Community sonar (C-MAP Genesis) overlays where recorded. Not for navigation.LakeList assistant
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Fishing spots, food, lodging, marinas, and rentals around South Twin Lake.
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Fishing
Fishing at South Twin Lake
Fishery
Notable species
PanfishLargemouth BassNorthern PikeWalleye
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2017, when 600 fish were recorded across 1 entry.
2015
WalleyeUnspecified · Large Fingerling
7497.0 in average
2013
WalleyeUnspecified · Large Fingerling
6006.0 in average
2011
WalleyeUnspecified · Large Fingerling
5996.0 in average
2010
WalleyeMississippi Headwaters · Small Fingerling
4,0251.8 in average
NWS weather
Weather windows
Weather-based planning from the National Weather Service hourly forecast near this lake — not a catch forecast.
Loading latest forecast…
Checking wind, precipitation, and near-term weather windows.
Water temperature
South Twin Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
68°FWarm
Seasonal estimate. Checking current National Weather Service air temperatures…
Comfortable summer pattern. Bass and panfish are active; early and late hours beat the midday heat.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
DNR water check
Water quality quick take
Historical volunteer-monitoring record for this lake.
Last sampled date unknown
Individual readings are not retained for this lake — the index below is what the monitoring record summarizes.
39 five-year summer trophic state index · Oligotrophic. Very clear, low-nutrient water — often deep, with limited plant growth.
South Twin Lake - Deep HoleStation 663104 · TSI based on chlorophyll
Historical record only — no current water-quality data exists for this lake. LakeList verified 2026-07-12.Official Wisconsin information
Plan with DNR sources
LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.
Historical DNR depth maps1 converted map sheetView DNR depth mapHistorical map · not for navigationFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance
Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.
Historical Wisconsin DNR maps
South Twin Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
South Twin Lake · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 2494500 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.
106surface acres
29max depth feet
1public access points
46.0624, -91.9613latitude, longitude
Access
Public access points
Boat launchAccess46.05704, -91.96584Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Depth FAQ
How deep is South Twin Lake?
South Twin Lake is 29 feet deep at its deepest point and averages about 16 feet, according to Wisconsin DNR records.
Is there a free depth map of South Twin Lake?
Yes. LakeList publishes a free interactive depth contour map of South Twin Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the South Twin Lake depth map come from?
The interactive depth contours are derived from LakeList depth model. Each contour set passes a visual QA review against the source document before it is published. The depths are a modeled estimate calibrated to the lake's documented maximum depth - not a survey, and not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Mapsname, coordinates, county, source identifiers
LakeList record updated 2026-07-14
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