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Lake Tahkodah
Enhanced dataInteractive depth contours
Lake TahkodahBayfield 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 18-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 Lake Tahkodah.
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Fishing forecast
Best windows for Lake Tahkodah
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
Lake Tahkodah 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.
Wisconsin DNR water assessment
Public-health advice and impairment listed
The DNR assessment indicates specific public-health advice for this waterbody. Review current official guidance before your trip or eating your catch.
303(d) / impairment recordSpecific public-health advice
Mercury Contaminated Fish TissuePollutants: Mercury
- Status
- 303d Listed
- Public health
- Specific Advice
- Recreation
- Full Body Contact
- Aquatic life
- Not specified
Water is impaired due to one or more pollutants and associated quality impacts.
Review DNR water quality Check consumption advice Source updated 2026-03-25 · LakeList verified 2026-07-12
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at Tahkodah Lake - Deep Hole.
Sampled Jul 2026Volunteer monitoring since 1998
Clear, low-algae water — summer clarity of 10.3 ft sits near the middle of monitored Wisconsin lakes.
Based on July–August 2025 averages across 9 volunteer readings.45Mesotrophic5-yr summer TSI
Moderately clear with moderate nutrients — a typical profile for good swimming lakes.
Water claritySecchi disk depth
10.3 ftJul–Aug 2025 avg (6 readings)
ClearStable since 2019
Clearer than 52% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
3 µg/LJul–Aug 2025 avg (3 readings)
LowImproving — down ~18% vs earlier years
NutrientsTotal phosphorus — fuels plant & algae growth
11 µg/LLatest single sample · 2025-07-01
LowLow phosphorus means light plant/algae growth pressure.
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 |
|---|---|---|---|
| 2026 | 9.0 ft (1) | — | — |
| 2025 | 10.3 ft (6) | 3.0 µg/L (3) | 11.0 µg/L (1) |
| 2024 | 8.3 ft (4) | 3.0 µg/L (2) | — |
| 2023 | 9.3 ft (10) | 5.5 µg/L (2) | — |
| 2022 | 6.3 ft (9) | 5.5 µg/L (2) | — |
| 2021 | 9.0 ft (2) | 5.5 µg/L (2) | — |
| 2020 | 11.3 ft (5) | 3.0 µg/L (2) | — |
| 2019 | 10.9 ft (8) | 6.0 µg/L (2) | — |
| 2018 | 9.3 ft (7) | 5.0 µg/L (1) | — |
| 2017 | 11.5 ft (7) | 5.0 µg/L (1) | — |
Latest individual samples: Secchi 9 ft (2026-07-07), chlorophyll-a 2 µg/L (2026-06-21), and total phosphorus 11 µg/L (2025-07-01).
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.
Tahkodah Lake - Deep HoleStation 043092 · TSI based on chlorophyll
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 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
Lake Tahkodah depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Lake Tahkodah · 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 2473500 · 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.
148surface acres
18max depth feet
1public access points
46.2439, -91.2231latitude, longitude
Access
Public access points
Boat launchAccess at S End Of Lake46.23911, -91.22857Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassNorthern PikeSmallmouth BassWalleye
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2025, when 1,477 fish were recorded across 1 entry.
2025
WalleyeLake Superior · Large Fingerling
1,4776.8 in average
2022
WalleyeMississippi Headwaters · Large Fingerling
1,4786.5 in average
2020
WalleyeMississippi Headwaters · Large Fingerling
1,4786.9 in average
2018
WalleyeMississippi Headwaters · Large Fingerling
1,4776.3 in average
2016
WalleyeMississippi Headwaters · Large Fingerling
1,4757.0 in average
2014
WalleyeUnspecified · Large Fingerling
1,4746.8 in average
2012
WalleyeMississippi Headwaters · Small Fingerling
5,3651.7 in average
2010
WalleyeMississippi Headwaters · Small Fingerling
5,3681.7 in average
Depth FAQ
How deep is Lake Tahkodah?
Lake Tahkodah is 18 feet deep at its deepest point and averages about 12 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Tahkodah?
Yes. LakeList publishes a free interactive depth contour map of Lake Tahkodah at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Lake Tahkodah 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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