Interactive depth contours for Twin Lakes in Ashland County, Wisconsin, derived from LakeList depth model survey data. Pan the map, inspect contour depths, or open the 3D underwater view.
Historical Wisconsin DNR maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.

Source: Wisconsin DNR · WBIC 2935700 · 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
Twin Lakes is 14 feet deep at its deepest point and averages about 6 feet, according to Wisconsin DNR records.
Yes. LakeList publishes a free interactive depth contour map of Twin Lakes at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.
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.