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Mission Lake
Enhanced dataInteractive depth contours
Mission 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 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 Mission Lake.
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Fishing forecast
Best windows for Mission 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
Mission 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
Historical volunteer-monitoring record for this lake.
Last sampled Sep 2012Volunteer monitoring 1973–2012
DNR volunteers monitored this lake for about 39 years, ending in 2012. Its final monitored summers showed slight haze water (~9.4 ft Secchi) in 2012, low algae (chlorophyll ~3 µg/L) in 2003, and low nutrients (phosphorus ~13.3 µg/L) in 2012. After 14 years without samples, these readings describe the lake as it was, not as it is.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2012 | 9.4 ft (3) | — | 13.3 µg/L (3) |
| 2011 | 6.0 ft (3) | — | 20.0 µg/L (1) |
| 2003 | 32.8 ft (1) | 3.0 µg/L (1) | 9.0 µg/L (1) |
| 1973 | — | — | 140.0 µg/L (1) |
Mission Lake - Deep HoleStation 373125
Historical record only — no current water-quality data exists for this lake. 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 sheetView 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
Mission Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Mission 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 1005400 · 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 early-spring fyke-netting survey used 49 net-nights to assess Mission Lake muskellunge and other gamefish and panfish populations.
The 2021 early-spring fyke-netting survey used 49 net-nights to assess Mission Lake muskellunge and other gamefish and panfish populations.
- 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 Crappie
199 fishSpring fyke-net catch · p. 24.3 inchesMinimum observed length · p. 214.2 inchesMaximum observed length · p. 24.1 fish/net nightSpring fyke-net CPUE · p. 2
Bluegill
396 fishSpring fyke-net catch · p. 13 inchesMinimum observed length · p. 17.4 inchesMaximum observed length · p. 18.1 fish/net nightSpring fyke-net CPUE · p. 1
Largemouth Bass
32 fishSpring fyke-net catch · p. 36.3 inchesMinimum observed length · p. 320.9 inchesMaximum observed length · p. 30.7 fish/net nightSpring fyke-net CPUE · p. 3
Muskellunge
59 fishSpring fyke-net catch · p. 427.2 inchesMinimum observed length · p. 442 inchesMaximum observed length · p. 41.2 fish/net nightSpring fyke-net CPUE · p. 4
Northern Pike
41 fishSpring fyke-net catch · p. 419.4 inchesMinimum observed length · p. 432.7 inchesMaximum observed length · p. 40.8 fish/net nightSpring fyke-net CPUE · p. 4
Pumpkinseed
158 fishSpring fyke-net catch · p. 23.4 inchesMinimum observed length · p. 28 inchesMaximum observed length · p. 23.2 fish/net nightSpring fyke-net CPUE · p. 2
Pumpkinseed x Bluegill Hybrid
47 fishSpring fyke-net catch · p. 5
Warmouth
33 fishSpring fyke-net catch · p. 5
Yellow Perch
449 fishSpring fyke-net catch · p. 34.9 inchesMinimum observed length · p. 310.8 inchesMaximum observed length · p. 39.2 fish/net nightSpring fyke-net CPUE · p. 3
Mission Lake summary survey, 2021Matched by exact normalized name county · WBICs · verified 2026-07-19Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this public report with source attribution.
104surface acres
26max depth feet
1public access points
44.7777, -89.3524latitude, longitude
Access
Public access points
Boat launchAccess44.77957, -89.35425Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassMuskyNorthern Pike
Depth FAQ
How deep is Mission Lake?
Mission Lake is 26 feet deep at its deepest point and averages about 12 feet, according to Wisconsin DNR records.
Is there a free depth map of Mission Lake?
Yes. LakeList publishes a free interactive depth contour map of Mission 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 Mission 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 2026-07-12
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