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Jack Lake depth map
Interactive depth contours
Interactive depth contours for Jack Lake in Langlade County, Wisconsin, derived from LakeList depth model survey data. Pan the map, inspect contour depths, or open the 3D underwater view.
38max depth feet
18mean depth feet
85surface acres
8mapped depth contours
Jack LakeLanglade 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 38-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.Historical Wisconsin DNR maps
Jack Lake depth maps
1 converted map sheet · 1 map-aligned. These historical surveys are not for navigation.
Navigable depth map
Jack 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 992400 · map alignment passed · 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 Jack Lake?
Jack Lake is 38 feet deep at its deepest point and averages about 18 feet, according to Wisconsin DNR records.
Is there a free depth map of Jack Lake?
Yes. LakeList publishes a free interactive depth contour map of Jack Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
Where does the Jack 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.