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Lake Chetac
Enhanced dataInteractive depth contours
Lake ChetacSawyer 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 82% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 26-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Lake Chetac.
Start here
Fishing forecast
Best windows for Lake Chetac
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 Chetac 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 Lake Chetac North Basin Deep Hole.
Sampled Jun 2026Volunteer monitoring since 1995
High algae readings and high nutrients in the most recent monitored summers.
Based on July–August 2025 averages across 2 volunteer readings.69Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
AlgaeChlorophyll-a
60.5 µg/LJul–Aug 2025 avg (2 readings)
HighStable since 2017
NutrientsTotal phosphorus — fuels plant & algae growth
116 µg/LLatest single sample · 2025-08-18
High2019–2025
High phosphorus points to heavy plant/algae growth pressure.
No recent clarity readings — last measured 2017.
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 | — | 60.5 µg/L (2) | 116.0 µg/L (1) |
| 2024 | — | 80.5 µg/L (2) | 128.0 µg/L (1) |
| 2023 | — | 46.5 µg/L (2) | — |
| 2022 | — | 62.5 µg/L (2) | 137.0 µg/L (1) |
| 2020 | — | 65.0 µg/L (1) | — |
| 2019 | — | 74.5 µg/L (2) | 84.0 µg/L (1) |
| 2018 | 2.5 ft (1) | 65.0 µg/L (1) | — |
| 2017 | 3.3 ft (2) | 53.5 µg/L (2) | — |
| 2016 | 3.1 ft (4) | 57.0 µg/L (2) | — |
| 2015 | 2.4 ft (6) | 76.0 µg/L (1) | — |
Latest individual samples: Secchi 2.5 ft (2018-07-24), chlorophyll-a 22 µg/L (2026-06-22), and total phosphorus 116 µg/L (2025-08-18).
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 Chetac North Basin Deep HoleStation 583095 · 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 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
Lake Chetac depth maps
2 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Lake Chetac · 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 2113300 · 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.
Fishbrain community activity
Recent catch activity
Aggregated public catch activity matched to Lake Chetac. Exact catch locations and angler details are not shown.
Most reported species in this extract
Largemouth bass34Northern pike24Black crappie21Walleye14Smallmouth bass9Yellow perch8Bluegill6
Catch analytics
Seasonal fish catch patterns
Pick a species to see when anglers reported it, compare against all fish by month, then scan year-by-year catch volume.
Largemouth bass by monthMonthly reports tagged as Largemouth bass.
Jan
Feb
Mar
Apr
May
1Jun
Jul
Aug
Sep
Oct
Nov
Dec
All fish by monthTotal public catch reports across every listed species.
Jan
Feb
Mar
Apr
May
1Jun
1Jul
Aug
Sep
Oct
Nov
Dec
Yearly catch view2026 had the most reported catch activity.
20261 Largemouth bass2 all fish
Recent catch detailsLatest authorized records; measurements appear only when reported.
- Brown bullheadCommunity report · Jul 7, 202613 in
- Largemouth bassCommunity report · Jun 26, 20265 in2 lbReleased
Catch counts are community reports, not a population survey or a guarantee of current fishing conditions.
View source on Fishbrain2,400surface acres
26max depth feet
2public access points
45.7126, -91.4995latitude, longitude
Access
Public access points
Boat launchLake Chetac Access45.72817, -91.47512Managed by TOWNSHIPTOWN OF EDGEWATERRamp surface: Concrete PlankADA-accessible feature: NoVerified 2026-07-12
Boat launchLake Chetac Public Access45.70690, -91.49525Managed by STATE(DNR)TOWN OF EDGEWATERRamp surface: Concrete PanelsADA-accessible feature: YesVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfishSmallmouth BassWalleye
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2024, when 23,993 fish were recorded across 1 entry.
2024
WalleyeChippewa/St. Croix · Large Fingerling
23,9936.9 in average
2022
WalleyeMississippi Headwaters · Large Fingerling
23,9866.8 in average
2020
WalleyeMississippi Headwaters · Large Fingerling
23,9886.9 in average
2018
WalleyeMississippi Headwaters · Large Fingerling
24,0016.5 in average
2016
WalleyeMississippi Headwaters · Large Fingerling
23,9907.4 in average
2014
WalleyeMississippi Headwaters · Large Fingerling
23,9966.3 in average
2013
WalleyeMississippi Headwaters · Large Fingerling
9,6007.0 in average
2012
WalleyeLac Courte Oreilles · Small Fingerling
3,0007.0 in average
2011
WalleyeLac Courte Oreilles · Large Fingerling
1,5007.8 in average
Depth FAQ
How deep is Lake Chetac?
Lake Chetac is 26 feet deep at its deepest point and averages about 14 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Chetac?
Yes. LakeList publishes a free interactive depth contour map of Lake Chetac 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 Lake Chetac 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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