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Pike Lake
Enhanced dataInteractive depth contours
Pike LakeMarathon County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 99% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 34-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
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Fishing forecast
Best windows for Pike 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
Pike Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
75°FPeak summer
Seasonal estimate. Checking current National Weather Service air temperatures…
Warmest water of the year. Fish hold deeper or feed in low light; swimming and watersports are at their best.
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 Pike Lake - Deep Hole.
Sampled Apr 2026
Somewhat hazy water — summer clarity of 7.1 ft ranks among the lowest of monitored Wisconsin lakes.
Based on July–August 2025 averages across 6 volunteer readings.58Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
7.1 ftJul–Aug 2025 avg (4 readings)
Slight hazeStable since 2018
Clearer than 14% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
18.5 µg/LJul–Aug 2025 avg (2 readings)
ElevatedWorsening — up ~43% vs earlier years
NutrientsTotal phosphorus — fuels plant & algae growth
123 µg/LLatest single sample · 2026-04-07
High2018–2024
High phosphorus points to heavy 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 | 7.1 ft (4) | 18.5 µg/L (2) | — |
| 2024 | 3.8 ft (3) | 20.0 µg/L (1) | 29.0 µg/L (1) |
| 2023 | 5.8 ft (2) | 10.0 µg/L (2) | — |
| 2022 | 5.1 ft (6) | 13.5 µg/L (2) | — |
| 2021 | 5.0 ft (5) | 10.5 µg/L (2) | 32.0 µg/L (1) |
| 2020 | 8.7 ft (6) | 10.0 µg/L (2) | — |
| 2019 | 5.1 ft (7) | 34.0 µg/L (2) | 39.0 µg/L (1) |
| 2018 | 6.4 ft (7) | 3.0 µg/L (2) | 15.0 µg/L (1) |
| 2017 | 5.1 ft (4) | 5.5 µg/L (2) | — |
| 2016 | 5.7 ft (7) | 5.0 µg/L (2) | — |
Latest individual samples: Secchi 3.9 ft (2025-09-11), chlorophyll-a 47 µg/L (2025-09-11), and total phosphorus 123 µg/L (2026-04-07).
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.
Pike Lake - Deep HoleStation 373390 · 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 maps3 converted map sheetsView 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
Pike Lake depth maps
3 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Pike 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 1406300 · 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 2021 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 contextThe 2021 comprehensive survey used spring fyke netting, two early-spring electrofishing runs, late-spring electrofishing and fall juvenile-Walleye electrofishing on Pike Lake, Marathon County.
The 2021 comprehensive survey used spring fyke netting, two early-spring electrofishing runs, late-spring electrofishing and fall juvenile-Walleye electrofishing on Pike Lake, Marathon County.
- Historical fisheries snapshot; not current fishing regulations or navigation guidance.
- Only metrics explicitly supported by the cited source page were promoted.
- Population estimates, relative-abundance indices, gear limitations and size thresholds retain source scope.
Black Bullhead
11 fishTotal spring survey catch · p. 1512.2 inchesAverage length · p. 1510.8 inchesMinimum observed length · p. 1515.1 inchesMaximum observed length · p. 15
Black Crappie
345 fishTotal spring survey catch · p. 155.7 inchesAverage length · p. 153.8 inchesMinimum observed length · p. 1511.3 inchesMaximum observed length · p. 15
Bluegill
310 fishTotal spring survey catch · p. 155 inchesAverage length · p. 153.1 inchesMinimum observed length · p. 158.8 inchesMaximum observed length · p. 15
Brown Bullhead
30 fishTotal spring survey catch · p. 15
Largemouth Bass
95 fishTotal spring survey catch · p. 1515.8 inchesAverage length · p. 155.2 inchesMinimum observed length · p. 1520.8 inchesMaximum observed length · p. 15
Northern Pike
285 fishTotal spring survey catch · p. 1521.5 inchesAverage length · p. 158.8 inchesMinimum observed length · p. 1531.7 inchesMaximum observed length · p. 15
Pumpkinseed
72 fishTotal spring survey catch · p. 154.7 inchesAverage length · p. 153 inchesMinimum observed length · p. 157 inchesMaximum observed length · p. 15
Walleye
98 fishTotal spring survey catch · p. 1521.5 inchesAverage length · p. 157.2 inchesMinimum observed length · p. 1528 inchesMaximum observed length · p. 15
White Sucker
58 fishTotal spring survey catch · p. 1517.5 inchesAverage length · p. 1510.9 inchesMinimum observed length · p. 1522.7 inchesMaximum observed length · p. 15
Yellow Bullhead
131 fishTotal spring survey catch · p. 1510.8 inchesAverage length · p. 155.8 inchesMinimum observed length · p. 1513.8 inchesMaximum observed length · p. 15
Yellow Perch
180 fishTotal spring survey catch · p. 154.3 inchesAverage length · p. 153 inchesMinimum observed length · p. 159 inchesMaximum observed length · p. 15
Pike Lake comprehensive survey 2021Matched by exact wbic name county · WBICs 1406300 · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this public report with source attribution.
204surface acres
34max depth feet
1public access points
44.8148, -89.3488latitude, longitude
Access
Public access points
Boat launchAccess44.81199, -89.34650Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
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Fishery
Notable species
PanfishLargemouth BassNorthern PikeWalleye
Depth FAQ
How deep is Pike Lake?
Pike Lake is 34 feet deep at its deepest point and averages about 13 feet, according to Wisconsin DNR records.
Is there a free depth map of Pike Lake?
Yes. LakeList publishes a free interactive depth contour map of Pike Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Pike Lake depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; 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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