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Twin Lakes
Enhanced dataInteractive depth contours
Twin LakesBayfield County, WI
Contours load with map
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 25-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
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Twin Lakes.
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Fishing forecast
Best windows for Twin Lakes
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Twin Lakes water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
73°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
From Wisconsin DNR / Citizen Lake Monitoring readings at Twin Lake North - Deep Hole.
Last sampled Jun 2023
Through 2023, dNR monitoring data is available for this lake.
Based on the newest individual DNR samples — too few to average.No recent clarity readings — last measured 2020. No recent algae readings — last measured 1979. No recent nutrient readings — last measured 1979.
All readings by year · station details · methodology
Summer averages (July/August)
July/August means; counts in parentheses show how many samples went into each average.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2022 | 12.0 ft (1) | — | — |
| 2021 | 10.0 ft (1) | — | — |
| 2020 | 9.5 ft (2) | — | — |
| 2019 | 8.0 ft (1) | — | — |
| 2018 | 9.0 ft (1) | — | — |
| 2017 | 9.0 ft (2) | — | — |
| 2016 | 8.8 ft (2) | — | — |
| 2015 | 10.3 ft (2) | — | — |
| 1979 | — | 6.0 µg/L (1) | 20.0 µg/L (1) |
Latest individual samples: Secchi 10 ft (2023-06-12), chlorophyll-a 6 µg/L (1979-07-09), and total phosphorus 20 µg/L (1979-07-09).
Secchi clarity is how deep a black-and-white disk stays visible from the surface — more feet means clearer water.
Chlorophyll-a is an algae pigment; higher values signal more algae in the water column.
Total phosphorus is a nutrient that feeds algae and aquatic plants. It is not a weed survey — depth, bottom type, water movement, and management change the actual lake experience.
Twin Lake North - Deep HoleStation 044029
Modeled from DNR/CLMN monitoring — not a safety or swim-condition report. Verify current conditions locally. 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
Twin Lakes depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Twin Lakes · 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 2731800 · 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.
52surface acres
25max depth feet
0public access points
46.6850, -91.0575latitude, longitude
Access
Public access points
No mapped access points yet
LakeList has not matched a public launch, park, or shoreline access point for this lake yet.
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfish
Depth FAQ
How deep is Twin Lakes?
Twin Lakes is 25 feet deep at its deepest point and averages about 10 feet, according to Wisconsin DNR records.
Is there a free depth map of Twin Lakes?
Yes. LakeList publishes a free interactive depth contour map of Twin Lakes at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Twin Lakes 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 Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-05-25
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