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Wisconsin›Sawyer County›Mud Lake

Mud Lake

Enhanced dataInteractive depth contours
--°FLoading forecastWind pendingHumidity pendingPending fishingForecast
Mud LakeSawyer 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 93% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 15-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 Mud Lake.

Start here

Fishing

Fishing at Mud Lake

4 notable speciesAngler catch reportsStocked 2025Weather windows

Fishery

Notable species

Largemouth BassMuskyPanfishWalleye
Best musky lakes in Wisconsin →Best walleye lakes in Wisconsin →Best panfish lakes in Wisconsin →Best largemouth bass lakes in Wisconsin →

Angler reports · Fishbrain

What anglers catch here

Anglers have logged 15 catches on Mud Lake via Fishbrain — none in the last 30 days.

Latest reported catch: May 25, 2026

Most-reported species

  • Largemouth bass8 reports
  • Northern pike5 reports

2 of the 15 logged catches didn’t name a species and aren’t listed above.

Counts reflect reporting activity, not fish populations. Waterbody location is provider-level; exact spots and angler details aren’t shown.

Fishery details for this lakeExplore this area on Fishbrain

Wisconsin DNR stocking

Fish stocking history

The latest published year is 2025, when 500 fish were recorded across 1 entry.

2025
MuskellungeUpper Chippewa River · Large Fingerling
50011.0 in average
2012
WalleyeLac Courte Oreilles · Small Fingerling
747.0 in average

NWS weather

Weather windows

Weather-based planning from the National Weather Service hourly forecast near this lake — not a catch forecast.

Loading
Loading latest forecast…

Checking wind, precipitation, and near-term weather windows.

Water temperature

Mud Lake water temperature today

Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.

68°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.

Warmest monthAugust · ~76°F
Freezing surfaceDecember – March
Model depth input15 ft max depth
Monthly Mud Lake water temperatures and freeze-up FAQ →

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 Mud Lake - Deepest Spot.

Sampled Jun 2026Volunteer monitoring since 2020

Somewhat hazy but low-algae water — summer clarity of 9.8 ft is clearer than most monitored Wisconsin lakes.

Based on July–August 2025 averages across 7 volunteer readings.
0 ft815Disk vanishes9.8 ft downJul–Aug 2025 average
Water claritySecchi disk depth
9.8 ftJul–Aug 2025 avg (5 readings)
Slight haze
2007–2025

Clearer than 56% of 593 monitored Wisconsin lakes with current readings.

AlgaeChlorophyll-a
1 µg/LJul–Aug 2025 avg (2 readings)
Very low
2007–2025
NutrientsTotal phosphorus — fuels plant & algae growth
18 µg/LLatest single sample · 2026-06-25
Low

Low 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.

YearSecchiChlorophyll-aTotal phosphorus
20259.8 ft (5)1.0 µg/L (2)—
20219.1 ft (1)2.5 µg/L (2)—
202011.1 ft (4)2.0 µg/L (1)19.0 µg/L (1)
20076.4 ft (1)3.0 µg/L (1)15.0 µg/L (1)

Latest individual samples: Secchi 13 ft (2025-09-26), chlorophyll-a 1 µg/L (2026-06-25), and total phosphorus 18 µg/L (2026-06-25).

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.

Mud Lake - Deepest SpotStation 583216
Station reports DNR lake record
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

Mud Lake depth maps

1 converted map sheet. These historical surveys are not for navigation.

Original DNR document

Navigable depth map

Mud Lake · sheet 1

Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.

Full-size image
100% Drag to pan · wheel to zoom
Mud Lake historical Wisconsin DNR depth map sheet 1

Source: Wisconsin DNR · WBIC 2434800 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.

Loading map after the main lake details
Mud Lake · page 1Sawyer County · WBIC 2434800 · 283 KB preview
Map image · not spatially aligned
Full-size map DNR source

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.

464surface acres
15max depth feet
1public access points
46.0002, -91.2515latitude, longitude

Access

Public access points

Boat launchChief River Public Access46.00928, -91.24480Managed by STATE(DNR)TOWN OF ROUND LAKERamp surface: Concrete PlankADA-accessible feature: NoVerified 2026-07-12
DNR verifiedDirectionsOfficial details

Nearby

Trip-planning places

No nearby trip-planning places yet

Depth FAQ

How deep is Mud Lake?

Mud Lake is 15 feet deep at its deepest point and averages about 6 feet, according to Wisconsin DNR records.

Is there a free depth map of Mud Lake?

Yes. LakeList publishes a free interactive depth contour map of Mud 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 Mud 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.

View the full Mud Lake depth map →

Trust and freshness

Where this lake data comes from

Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-07-12

Keep exploring

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