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Hartman Lake
Enhanced dataHistorical depth chart
Hartman LakeWaupaca County, WI
Historical source depth chart available18 converted source DNR map sheets can be panned and zoomed in the browser. Interactive contours stay hidden until visual QA passes. Historical survey — not for navigation.
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Fishing spots, food, lodging, marinas, and rentals around Hartman Lake.
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Fishing forecast
Best windows for Hartman 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
Hartman Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
78°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.
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 maps18 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
Hartman Lake depth maps
18 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Hartman Lake · sheet 4
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 263900 · 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.
18surface acres
9max depth feet
1public access points
44.3267, -89.2196latitude, longitude
Access
Public access points
Boat launchHartman Lake Carry-in44.32469, -89.20418Managed by STATE(DNR)TOWN OF DAYTONRamp surface: UnimprovedLanding type: CARRY-INADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassPanfishNorthern Pike
Depth FAQ
How deep is Hartman Lake?
Hartman Lake is 9 feet deep at its deepest point and averages about 14 feet, according to Wisconsin DNR records.
Is there a free depth map of Hartman Lake?
Yes. 18 scanned Wisconsin DNR lake survey map sheets are free to view and zoom on LakeList. These historical surveys are not for navigation.
Where does the Hartman Lake depth map come from?
The map sheets are converted from official Wisconsin DNR lake survey documents, with the source URL, checksum, and retrieval date retained for every sheet. Historical surveys are 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