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Lake Kegonsa
Enhanced dataInteractive depth contours
Lake KegonsaDane 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 92% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 32-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 Kegonsa.
Start here
Fishing forecast
Best windows for Lake Kegonsa
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 Kegonsa water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
76°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.
Wisconsin DNR water assessment
Public-health advice and impairment listed
The DNR assessment indicates specific public-health advice for this waterbody. Review current official guidance before your trip or eating your catch.
303(d) / impairment recordSpecific public-health adviceRecreation restrictions noted
Excess Algal Growth, Eutrophication, PFOS Contaminated Fish TissuePollutants: PFOS, Total Phosphorus
- Status
- TMDL Approved, 303d Listed
- Public health
- Specific 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.
60 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.Lake Kegonsa - Deep HoleStation 133122 · TSI based on Secchi
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
Lake Kegonsa depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Lake Kegonsa · 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 802600 · 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 2016 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 contextLake Kegonsa (WBIC 802600) only
Human-reviewed 2016 spring fyke-net, electrofishing and population-estimate metrics for Lake Kegonsa.
- Historical survey snapshot; not current regulations or navigation guidance.
- Only explicit report observations and estimates were promoted; management targets, comparison-lake values and unsupported chart-only values were excluded.
- Metric source pages, survey years, methods, units and exact waterbody scope are retained.
Black Crappie
423 fish2016 fyke net catch count · p. 193.2 inches2016 min length · p. 198.2 inches2016 mean length · p. 1912.2 inches2016 max length · p. 19
Bluegill
1,563 fish2016 fyke net catch count · p. 193.4 inches2016 min length · p. 196.4 inches2016 mean length · p. 1910.2 inches2016 max length · p. 19
Bowfin
7 fish2016 fyke net catch count · p. 19
Brown Bullhead
11 fish2016 fyke net catch count · p. 195.2 inches2016 min length · p. 1910.2 inches2016 mean length · p. 1914.6 inches2016 max length · p. 19
Bullheads
3 fish2016 fyke net catch count · p. 19
Common Carp
19 fish2016 fyke net catch count · p. 195.2 inches2016 min length · p. 199.4 inches2016 mean length · p. 1923.6 inches2016 max length · p. 19
Freshwater Drum
10 fish2016 fyke net catch count · p. 19
Golden Shiner
24 fish2016 fyke net catch count · p. 19
Green Sunfish
3 fish2016 fyke net catch count · p. 193.9 inches2016 min length · p. 195.6 inches2016 mean length · p. 196.9 inches2016 max length · p. 19
Largemouth Bass
60 fish2016 fyke net catch count · p. 195.1 inches2016 min length · p. 1912.3 inches2016 mean length · p. 1919.7 inches2016 max length · p. 19
Muskellunge
14 fish2016 fyke net catch count · p. 1924.9 inches2016 min length · p. 1936.4 inches2016 mean length · p. 1944.5 inches2016 max length · p. 19
Northern Pike
322 fish2016 fyke net catch count · p. 199.2 inches2016 min length · p. 1924 inches2016 mean length · p. 1940.3 inches2016 max length · p. 19
Pumpkinseed
36 fish2016 fyke net catch count · p. 193.5 inches2016 min length · p. 195.6 inches2016 mean length · p. 197.2 inches2016 max length · p. 19
Rock Bass
5 fish2016 fyke net catch count · p. 197.5 inches2016 min length · p. 197.9 inches2016 mean length · p. 198.2 inches2016 max length · p. 19
Smallmouth Bass
21 fish2016 fyke net catch count · p. 197.8 inches2016 min length · p. 1912.6 inches2016 mean length · p. 1915.3 inches2016 max length · p. 19
Walleye
509 fish2016 fyke net catch count · p. 197.4 inches2016 min length · p. 1915.9 inches2016 mean length · p. 1928.3 inches2016 max length · p. 19
Warmouth
4 fish2016 fyke net catch count · p. 195.7 inches2016 min length · p. 195.8 inches2016 mean length · p. 195.8 inches2016 max length · p. 19
White Bass
414 fish2016 fyke net catch count · p. 194.6 inches2016 min length · p. 1913.1 inches2016 mean length · p. 1915.7 inches2016 max length · p. 19
White Crappie
8 fish2016 fyke net catch count · p. 193.9 inches2016 min length · p. 195.4 inches2016 mean length · p. 1910.7 inches2016 max length · p. 19
White Sucker
25 fish2016 fyke net catch count · p. 1916.4 inches2016 min length · p. 1920.1 inches2016 mean length · p. 1923.2 inches2016 max length · p. 19
Yellow Bass
862 fish2016 fyke net catch count · p. 193.3 inches2016 min length · p. 197 inches2016 mean length · p. 1912.3 inches2016 max length · p. 19
Yellow Bullhead
171 fish2016 fyke net catch count · p. 194.7 inches2016 min length · p. 1911.8 inches2016 mean length · p. 1915 inches2016 max length · p. 19
Yellow Perch
15 fish2016 fyke net catch count · p. 195.7 inches2016 min length · p. 198.4 inches2016 mean length · p. 1911.5 inches2016 max length · p. 19
Lake Kegonsa comprehensive survey, 2016Matched by exact wbic name county · WBICs 802600 · verified 2026-07-20Wisconsin DNR fisheries report; LakeList operator documented permission to leverage this public report with source attribution.
3,200surface acres
32max depth feet
6public access points
42.9659, -89.2517latitude, longitude
Access
Public access points
Boat launchAccess - Off Williams Point Dr.42.97133, -89.23829Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchAmundsons Landing42.94940, -89.26000Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchFish Camp Launch Park Boat Ramp - Lake Kegonsa42.98196, -89.26276Managed by Wisconsin DNR
DNR verifiedDirections
Shore fishingLake Kegonsa Fishing Piers42.96960, -89.22413Managed by Wisconsin DNR verifiedTown of Pleasant SpringsVerified 2026-07-12
Boat launchLake Kegonsa State Park Boat Access42.96968, -89.22416Managed by Wisconsin DNR
DNR verifiedDirections
Boat launchYahara River Canoe Launch42.98260, -89.26495Managed by STATE(DNR)TOWN OF DUNNRamp surface: PavedLanding type: CARRY-INADA-accessible feature: YesVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassNorthern PikeWalleyeCatfishMuskySmallmouth Bass
Depth FAQ
How deep is Lake Kegonsa?
Lake Kegonsa is 32 feet deep at its deepest point and averages about 17 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Kegonsa?
Yes. LakeList publishes a free interactive depth contour map of Lake Kegonsa 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 Kegonsa 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