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Long Lake depth map
Interactive depth contours
Interactive depth contours for Long Lake in Waupaca County, Wisconsin, derived from C-MAP Genesis community sonar (derived) survey data. Pan the map, inspect contour depths, or open the 3D underwater view.
76max depth feet
30mean depth feet
112surface acres
9mapped depth contours
Long LakeWaupaca County, WI
Contours load with map
Interactive depth contours10-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 95% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 76-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.Historical Wisconsin DNR maps
Long Lake depth maps
17 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Long 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 261200 · 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.
Depth FAQ
How deep is Long Lake?
Long Lake is 76 feet deep at its deepest point and averages about 30 feet, according to Wisconsin DNR records.
Is there a free depth map of Long Lake?
Yes. LakeList publishes a free interactive depth contour map of Long Lake at a typical 10-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Long 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.