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Bone Lake
Enhanced dataInteractive depth contours
Bone LakePolk 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 43-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 Bone Lake.
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Fishing forecast
Best windows for Bone 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
Bone Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
72°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 Bone Lake - South Of Large Island.
Sampled Jun 2026Volunteer monitoring since 1989
Somewhat hazy water — summer clarity of 7 ft is clearer than most monitored Wisconsin lakes.
Based on July–August 2025 averages across 9 volunteer readings.60Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
7 ftJul–Aug 2025 avg (7 readings)
Slight hazeStable since 2018
Clearer than 56% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
17 µg/LJul–Aug 2025 avg (2 readings)
ElevatedImproving — down ~30% vs earlier years
NutrientsTotal phosphorus — fuels plant & algae growth
17 µg/LLatest single sample · 2022-05-23
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 |
|---|---|---|---|
| 2025 | 7.0 ft (7) | 17.0 µg/L (2) | — |
| 2024 | 8.4 ft (6) | 7.0 µg/L (1) | — |
| 2023 | 7.9 ft (8) | 16.5 µg/L (2) | — |
| 2022 | 7.4 ft (10) | 42.5 µg/L (2) | — |
| 2021 | 8.4 ft (13) | 8.0 µg/L (1) | — |
| 2020 | 10.4 ft (4) | 7.0 µg/L (1) | — |
| 2019 | 6.6 ft (7) | 16.0 µg/L (2) | — |
| 2018 | 11.0 ft (8) | 15.0 µg/L (1) | — |
| 2017 | 6.3 ft (7) | 24.5 µg/L (2) | — |
| 2016 | 4.9 ft (7) | — | — |
Latest individual samples: Secchi 10 ft (2026-06-27), chlorophyll-a 9 µg/L (2026-06-16), and total phosphorus 17 µg/L (2022-05-23).
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.
Bone Lake - South Of Large IslandStation 493114 · 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 maps2 converted map sheetsFishing 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
Bone Lake depth maps
2 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Bone Lake · sheet 2
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 2628100 · 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.
1,667surface acres
43max depth feet
2public access points
45.2312, -92.3261latitude, longitude
Access
Public access points
Boat launchAccess Nr Bone Lake Park Ln45.56441, -92.39565Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchAccess Off Dueholm Dr45.50125, -92.38096Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassMuskyNorthern PikePanfish
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2025, when 1,624 fish were recorded across 1 entry.
2025
MuskellungeUpper Chippewa River · Large Fingerling
1,62412.6 in average
2023
MuskellungeUpper Chippewa River · Large Fingerling
1,61511.7 in average
2021
MuskellungeUpper Chippewa River · Large Fingerling
59013.3 in average
2019
MuskellungeUpper Chippewa River · Large Fingerling
1,43312.2 in average
2017
MuskellungeUpper Chippewa River · Large Fingerling
62212.3 in average
2015
MuskellungeUpper Chippewa River · Large Fingerling
2,50012.2 in average
2013
MuskellungeUpper Chippewa River · Large Fingerling
2,50011.2 in average
2011
MuskellungeUpper Chippewa River · Large Fingerling
2,49710.0 in average
2011
Smallmouth BassUnspecified · Large Fingerling
4,0004.0 in average
2010
Smallmouth BassUnspecified · Large Fingerling
3,5005.0 in average
Depth FAQ
How deep is Bone Lake?
Bone Lake is 43 feet deep at its deepest point and averages about 23 feet, according to Wisconsin DNR records.
Is there a free depth map of Bone Lake?
Yes. LakeList publishes a free interactive depth contour map of Bone Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Bone 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 2026-05-25