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Black Oak Lake
Enhanced dataInteractive depth contours
Black Oak LakeLanglade 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 34-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 Black Oak Lake.
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Fishing forecast
Best windows for Black Oak Lake
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
Black Oak 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
From Wisconsin DNR / Citizen Lake Monitoring readings at Black Oak Lake - Deep Hole.
Last sampled Jul 2022
Through 2022, somewhat hazy water — summer clarity of 4.5 ft ranks among the lowest of monitored Wisconsin lakes.
Based on July–August 2022 averages across 2 volunteer readings.Water claritySecchi disk depth
4.5 ftJul–Aug 2022 avg (2 readings)
HazyClearer than 18% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
10 µg/LLatest single sample · 2022-07-31
ModerateAll 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 | 4.5 ft (2) | 10.0 µg/L (1) | — |
| 1979 | — | — | — |
Latest individual samples: Secchi 4.5 ft (2022-07-30) and chlorophyll-a 10 µg/L (2022-07-31).
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.
Black Oak Lake - Deep HoleStation 343036
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
Black Oak Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Black Oak 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 1447200 · 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.
56surface acres
34max depth feet
1public access points
45.2999, -89.2183latitude, longitude
Access
Public access points
Boat launchBlack Oak Lake Boat Launch45.29809, -89.21204Managed by TOWNSHIPTOWN OF UPHAMRamp surface: UnimprovedADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfish
Depth FAQ
How deep is Black Oak Lake?
Black Oak Lake is 34 feet deep at its deepest point, according to Wisconsin DNR records.
Is there a free depth map of Black Oak Lake?
Yes. LakeList publishes a free interactive depth contour map of Black Oak Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Black Oak 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 Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-07-12
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