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Lake Nebagamon
Enhanced dataInteractive depth contours
Lake NebagamonDouglas County, WI
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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 56-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 Lake Nebagamon.
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Fishing forecast
Best windows for Lake Nebagamon
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 Nebagamon water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
70°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 Lake Nebagamon - Big Bay - Deep Hole.
Sampled Sep 2025Volunteer monitoring since 1986
Somewhat hazy but low-algae water — summer clarity of 8.5 ft sits near the middle of monitored Wisconsin lakes.
Based on July–August 2025 averages across 5 volunteer readings.46Mesotrophic5-yr summer TSI
Moderately clear with moderate nutrients — a typical profile for good swimming lakes.
Water claritySecchi disk depth
8.5 ftJul–Aug 2025 avg (3 readings)
Slight hazeStable since 2018
Clearer than 52% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
4.5 µg/LJul–Aug 2025 avg (2 readings)
LowStable since 2018
No recent nutrient readings — last measured 2014.
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 |
|---|---|---|---|
| 2025 | 8.5 ft (3) | 4.5 µg/L (2) | — |
| 2024 | 5.9 ft (2) | 8.5 µg/L (2) | — |
| 2023 | 7.3 ft (5) | 5.0 µg/L (1) | — |
| 2022 | 7.5 ft (4) | 5.5 µg/L (2) | — |
| 2021 | 8.4 ft (4) | 3.5 µg/L (2) | — |
| 2020 | 6.8 ft (7) | 7.0 µg/L (2) | — |
| 2019 | 6.7 ft (7) | 7.0 µg/L (2) | — |
| 2018 | 4.8 ft (4) | 9.0 µg/L (2) | — |
| 2017 | 7.6 ft (5) | 6.5 µg/L (2) | — |
| 2016 | 5.8 ft (2) | 9.0 µg/L (2) | — |
Latest individual samples: Secchi 9 ft (2025-09-16), chlorophyll-a 6 µg/L (2025-08-31), and total phosphorus 13 µg/L (2014-08-19).
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.
Lake Nebagamon - Big Bay - Deep HoleStation 163394 · 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 Nebagamon depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Lake Nebagamon · 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 2865000 · 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.
Wisconsin DNR fisheries survey
Fish population survey
Structured LakeList extraction from the 2022 DNR fisheries survey. Population estimates, density, and catch-rate indices use different units, methods, and scopes, so each value is presented in its original form rather than normalized against a different measure.
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextLake-specific spring/fall 2022 fish assessment and May 2022-March 2023 angler creel survey. Fish-survey, stocking-evaluation and creel metrics retain distinct method and time scopes.
DNR estimated 1,471 adult walleyes, found improving natural recruitment and poor long-term stocked-fish returns, low-density quality panfish, abundant northern pike and a strong smallmouth-bass fishery.
- Survey year is 2022 for fish metrics; the creel period extends through March 2023 and published report date is December 2023.
- Less-than 0.1 fish/acre harvest values for pike and smallmouth bass are excluded rather than stored as exact 0.1 values.
- Only explicitly printed current-survey stocking costs, survival and contribution values are retained.
All fish
7,790 hoursEstimated total angling effort · p. 612.8 hours/acreEstimated angling effort per acre · p. 6
Black crappie
1,439 hoursEstimated directed angling effort · p. 612.3 percentShare of total directed effort · p. 61.6 hours/acreSpecies-directed angling effort · p. 130.6 fish/hourAngler catch rate · p. 13
Bluegill
1.3 hours/acreSpecies-directed angling effort · p. 150.9 fish/hourAngler catch rate · p. 150.2 fish/acreEstimated angler harvest · p. 158.2 inchesMean harvested length · p. 15
Northern pike
1.2 hours/acreSpecies-directed angling effort · p. 170.3 fish/hourAngler catch rate · p. 178.6 fish/net-nightSurvey CPUE · p. 1512.2 inchesminimum captured length · p. 15
Smallmouth bass
2,380 hoursEstimated directed angling effort · p. 620 percentShare of total directed effort · p. 62.6 hours/acreSpecies-directed angling effort · p. 200.4 fish/hourAngler catch rate · p. 20
Walleye
4,435 hoursEstimated directed angling effort · p. 638 percentShare of total directed effort · p. 61,471 adult fishAdult population estimate · p. 71,221 adult fishAdult population estimate lower 95% bound · p. 7
Fishery Survey Report for Lake Nebagamon, Douglas County, Wisconsin 2022-2023Matched by exact wbic name county · WBICs 2865000 · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this report with source attribution.
986surface acres
56max depth feet
1public access points
46.5025, -91.7013latitude, longitude
Access
Public access points
Boat launchLake Nebagamon Public Boat Landing46.51251, -91.70258Managed by VILLAGEVILLAGE OF LAKE NEBAGAMONRamp surface: ConcreteADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Northern PikeSmallmouth BassPanfishWalleyeLargemouth Bass
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2023, when 14,780 fish were recorded across 1 entry.
2023
WalleyeLake Superior · Large Fingerling
14,7807.1 in average
2021
WalleyeMississippi Headwaters · Large Fingerling
14,7686.2 in average
2019
WalleyeMississippi Headwaters · Large Fingerling
14,7826.3 in average
2017
WalleyeMississippi Headwaters · Large Fingerling
14,2686.4 in average
2015
WalleyeMississippi Headwaters · Large Fingerling
14,7837.5 in average
2013
WalleyeMississippi Headwaters · Large Fingerling
13,7087.0 in average
2012
WalleyeMississippi Headwaters · Large Fingerling
3,1177.5 in average
2012
WalleyeUnspecified · Large Fingerling
4,2507.0 in average
2011
WalleyeMississippi Headwaters · Large Fingerling
5,3906.0 in average
Depth FAQ
How deep is Lake Nebagamon?
Lake Nebagamon is 56 feet deep at its deepest point and averages about 20 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Nebagamon?
Yes. LakeList publishes a free interactive depth contour map of Lake Nebagamon at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Lake Nebagamon 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