LakeList
FavoritesStateWisconsin
North Twin Lake
Enhanced dataInteractive depth contours
North Twin LakePolk County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 63% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 27-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around North Twin Lake.
Start here
Fishing forecast
Best windows for North Twin Lake
Weather-based planning built from the National Weather Service hourly forecast near this lake.
Loading latest forecast…
Checking wind, precipitation, and near-term weather windows.
Water temperature
North 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.
74°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 Aug 2025Volunteer monitoring 1987–2025
DNR volunteers monitored this lake for about 38 years, ending in 2025. Its final monitored summers showed slight haze water (~7.7 ft Secchi) in 1993, very low algae (chlorophyll ~1.5 µg/L) in 2025, and low nutrients (phosphorus ~14.3 µg/L) in 2002. After 1 year without samples, these readings describe the lake as it was, not as it is.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2025 | — | 1.5 µg/L (2) | — |
| 2022 | — | 2.0 µg/L (1) | — |
| 2002 | — | 1.0 µg/L (2) | 14.3 µg/L (3) |
| 1993 | 7.7 ft (4) | — | — |
| 1992 | 6.3 ft (5) | — | — |
| 1991 | 3.8 ft (4) | — | 56.0 µg/L (1) |
North Twin Lake - Deep HoleStation 493060
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 sheetFishing 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
North Twin Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
North 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 2623900 · 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.
129surface acres
27max depth feet
1public access points
45.3148, -92.3690latitude, longitude
Access
Public access points
Boat launchAccess45.31851, -92.36267Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassNorthern PikeWalleye
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2020, when 1,400 fish were recorded across 1 entry.
2020
WalleyeUnspecified · Large Fingerling
1,4007.0 in average
2018
WalleyeUnspecified · Large Fingerling
2,0007.0 in average
2017
WalleyeUnspecified · Large Fingerling
3,0007.0 in average
2016
WalleyeMississippi Headwaters · Large Fingerling
3,0007.0 in average
2015
WalleyeMississippi Headwaters · Large Fingerling
3,0007.0 in average
2014
WalleyeUnspecified · Large Fingerling
3,0007.0 in average
2013
WalleyeMississippi Headwaters · Large Fingerling
2,0256.6 in average
2013
WalleyeMississippi Headwaters · Large Fingerling
3,0007.0 in average
2012
WalleyeMississippi Headwaters · Large Fingerling
3,0007.0 in average
2011
WalleyeUnspecified · Large Fingerling
3,0007.0 in average
2010
WalleyeUnspecified · Large Fingerling
2,5007.0 in average
Depth FAQ
How deep is North Twin Lake?
North Twin Lake is 27 feet deep at its deepest point and averages about 11 feet, according to Wisconsin DNR records.
Is there a free depth map of North Twin Lake?
Yes. LakeList publishes a free interactive depth contour map of North Twin Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the North Twin Lake depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-05-25
Keep exploring