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Fishtrap Lake
Enhanced dataInteractive depth contours
Fishtrap 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 21% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 11-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 Fishtrap Lake.
Start here
Fishing forecast
Best windows for Fishtrap 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
Fishtrap Lake 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.
DNR water check
Water quality quick take
Historical volunteer-monitoring record for this lake.
Last sampled Aug 2006Volunteer monitoring 2003–2006
DNR volunteers monitored this lake for about 3 years, ending in 2006. Its final monitored summers showed hazy water (~4 ft Secchi) in 2003, elevated algae (chlorophyll ~18 µg/L) in 2006, and elevated nutrients (phosphorus ~33 µg/L) in 2006. After 20 years without samples, these readings describe the lake as it was, not as it is.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2006 | — | 18.0 µg/L (1) | 33.0 µg/L (1) |
| 2003 | 4.0 ft (1) | — | — |
Fishtrap Lake - CenterStation 583158
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
Fishtrap Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Fishtrap 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 2401100 · 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.
263surface acres
11max depth feet
1public access points
45.9600, -90.9508latitude, longitude
Access
Public access points
Boat launchFishtrap Lake Access45.94891, -90.94626Managed by TOWNSHIPTOWN OF WINTERRamp surface: GravelADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
PanfishLargemouth BassMuskyNorthern PikeWalleye
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2025, when 500 fish were recorded across 1 entry.
2025
WalleyeUnspecified · Large Fingerling
500Length not listed
2024
WalleyeUnspecified · Large Fingerling
500Length not listed
2023
WalleyeUnspecified · Large Fingerling
500Length not listed
2022
WalleyeUnspecified · Large Fingerling
7507.0 in average
2021
WalleyeUnspecified · Large Fingerling
750Length not listed
2019
WalleyeUnspecified · Large Fingerling
5006.0 in average
2018
WalleyeUnspecified · Large Fingerling
5007.0 in average
2017
WalleyeUnspecified · Large Fingerling
5008.0 in average
2016
WalleyeUnspecified · Large Fingerling
5008.0 in average
2015
WalleyeUnspecified · Large Fingerling
1,0008.0 in average
2014
WalleyeMississippi Headwaters · Large Fingerling
5006.0 in average
Depth FAQ
How deep is Fishtrap Lake?
Fishtrap Lake is 11 feet deep at its deepest point and averages about 7 feet, according to Wisconsin DNR records.
Is there a free depth map of Fishtrap Lake?
Yes. LakeList publishes a free interactive depth contour map of Fishtrap 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 Fishtrap 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 2026-07-14
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