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Wisconsin›Sauk County›Mirror Lake

Mirror Lake

Enhanced dataInteractive depth contours
--°FLoading forecastWind pendingHumidity pendingPending fishingForecast
Mirror LakeSauk 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 19-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 Mirror Lake.

Start here

Fishing

Fishing at Mirror Lake

4 notable speciesAngler catch reports2014 DNR surveyDNR species outlooksWeather windows

Fishery

Notable species

Largemouth BassNorthern PikePanfishWalleye
Best walleye lakes in Wisconsin →Best panfish lakes in Wisconsin →Best largemouth bass lakes in Wisconsin →Best northern pike lakes in Wisconsin →

Angler reports · Fishbrain

What anglers catch here

Anglers have logged 200 catches on Mirror Lake via Fishbrain — 16 in the last 30 days, most recently on Jul 26, 2026.

Most-reported species

  • Largemouth bass72 reports · peaks July
  • Smallmouth bass29 reports · peaks June
  • Bluegill22 reports · peaks July
  • Yellow perch12 reports
  • Black crappie11 reports
  • Northern pike11 reports
Show 5 more species
  • Walleye11 reports
  • Pumpkinseed6 reports
  • White crappie5 reports
  • Warmouth4 reports
  • Yellow bass3 reports

14 of the 200 logged catches didn’t name a species and aren’t listed above.

Seasonality

All fish
Jan
Feb
Mar
Apr
22May
34Jun
51Jul
15Aug
19Sep
3Oct
Nov
Dec
Monthly reports, all fish: Jan 0 · Feb 0 · Mar 0 · Apr 0 · May 22 · Jun 34 · Jul 51 · Aug 15 · Sep 19 · Oct 3 · Nov 0 · Dec 0.

Of the 200 logged catches, 144 carry a month and 135 carry a year; the charts cover those.

2025 had the most reports (25).

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 fisheries survey

Fish population survey

Structured LakeList extraction from the 2014 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.

Source PDF
2014 adult population estimate59 fishPage-evidenced 2014 adult population estimate; the source year, method, raw unit and exact report-waterbody scope are retained.
2014 adult population density0.4 fish/acrePage-evidenced 2014 adult population density; the source year, method, raw unit and exact report-waterbody scope are retained.
Species indexed9182 extracted survey metrics
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextMirror Lake (WBIC 1296000) only

Human-reviewed 2014 abundance, population, catch-rate, length, age and size-structure metrics for Mirror Lake.

  • Historical survey snapshot; not current regulations or navigation guidance.
  • Only explicit fish-population observations and estimates were promoted; stocking rows, management targets, regulations and unsupported chart-only values were excluded.
  • Metric source pages, survey years, methods, raw units and exact report-waterbody scope are retained.

All fish

2,715 fish2014 catch count · p. 914 species2014 reported species count · p. 96 families2014 reported family count · p. 9

Black Crappie

510 fish2014 catch count · p. 116.3 fish/net-night2014 fyke net cpue · p. 1114.7 fish/mile2014 late spring electrofishing cpue · p. 11486 fish2014 measured count · p. 11

Bluegill

973 fish2014 catch count · p. 99.7 fish/net-night2014 fyke net cpue · p. 9143.3 fish/mile2014 late spring electrofishing cpue · p. 9876 fish2014 measured count · p. 10

Largemouth Bass

297 fish2014 catch count · p. 140.9 fish/net-night2014 fyke net cpue · p. 1416.2 fish/mile2014 early electrofishing cpue · p. 1418.2 fish/mile2014 late spring electrofishing cpue · p. 14

Northern Pike

362 fish2014 spring catch count including recaptures · p. 124.2 fish/net-night2014 fyke net cpue · p. 123.1 fish/mile2014 early electrofishing cpue · p. 121.5 fish/mile2014 late spring electrofishing cpue · p. 12

Smallmouth Bass

16 fish2014 catch count including recaptures · p. 180.1 fish/net-night2014 fyke net cpue less than · p. 180.3 fish/mile2014 early electrofishing cpue · p. 182 fish/mile2014 late spring electrofishing cpue · p. 18

Walleye

79 fish2014 spring catch count including recaptures · p. 170.7 fish/net-night2014 fyke net cpue · p. 172.2 fish/mile2014 early electrofishing cpue · p. 171.8 fish/mile2014 late spring electrofishing cpue · p. 17

White Crappie

8 fish2014 catch count · p. 188.2 inches2014 min length · p. 189.7 inches2014 max length · p. 188.9 inches2014 mean length · p. 18

Yellow Perch

270 fish2014 catch count · p. 16267 fish2014 fyke net catch count · p. 163.4 fish/net-night2014 fyke net cpue · p. 162 fish/mile2014 late spring electrofishing cpue · p. 16
Mirror Lake comprehensive survey, 2014Matched by exact wbic name county and lakelist uuid · WBICs 1296000 · verified 2026-07-21Wisconsin DNR fisheries report; LakeList operator documented permission to leverage this public report with source attribution.

Official fishing intelligence

DNR species outlooks

LakeList matched these official resources by exact lake name and county. Report text stays with the publisher.

Northern pike2026–2027 season · Wisconsin DNRSource verified 2026-07-13

Forecasts describe DNR survey findings and expected opportunities; they are not real-time catch reports or a guarantee of fishing conditions.

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

Mirror Lake water temperature today

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

71°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 surfaceJanuary – March
Model depth input19 ft max depth
Monthly Mirror 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.

Wisconsin DNR water assessment

Impaired waterbody listed

The DNR lists this waterbody as impaired. This notice is not itself a closure; review the official assessment and current guidance before your trip.

303(d) / impairment recordRecreation restrictions noted
High Phosphorus LevelsPollutants: Total Phosphorus
Status
303d Listed
Public health
General Advice
Recreation
Recreational Restrictions
Aquatic life
Not specified

Water is impaired due to one or more pollutants and associated quality impacts.

Review DNR water quality Check consumption advice Source updated 2026-03-25 · LakeList verified 2026-07-12

DNR water check

Water quality quick take

Historical volunteer-monitoring record for this lake.

Last sampled date unknown

Individual readings are not retained for this lake — the index below is what the monitoring record summarizes.

61 five-year summer trophic state index · Eutrophic. Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.

Listed as impaired on the DNR/EPA water-condition assessment — see the notice on this page for details.
Mirror Lake - Site 1 South Basin Near Boat LandingStation 573079 · TSI based on chlorophyll
Station reports DNR lake record
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 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

Mirror Lake depth maps

2 converted map sheets. These historical surveys are not for navigation.

Original DNR document

Navigable depth map

Mirror 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
Mirror Lake historical Wisconsin DNR depth map sheet 1

Source: Wisconsin DNR · WBIC 1296000 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.

Loading map after the main lake details
Mirror Lake · page 1Sauk County · WBIC 1296000 · 90 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.

139surface acres
19max depth feet
2public access points
43.5717, -89.8118latitude, longitude

Access

Public access points

Boat launchDelton Boat Landing43.56449, -89.83043Managed by TOWNSHIPTOWN OF DELTONRamp surface: Concrete PlankADA-accessible feature: YesVerified 2026-07-12
DNR verifiedDirectionsOfficial details
Boat launchState Park - E Side Of Lake43.57023, -89.81046Managed by Wisconsin DNR
DNR verifiedDirections

Nearby

Trip-planning places

No nearby trip-planning places yet

Depth FAQ

How deep is Mirror Lake?

Mirror Lake is 19 feet deep at its deepest point and averages about 8 feet, according to Wisconsin DNR records.

Is there a free depth map of Mirror Lake?

Yes. LakeList publishes a free interactive depth contour map of Mirror Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.

Where does the Mirror 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.

View the full Mirror Lake depth map →

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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  • Lake DeltonLake DeltonSauk County · 249 ac · 16 ft