Alder Lake Depth Map — Cook County, MN

72max depth feet

Unknownmean depth feet

528.93surface acres

8mapped depth contours

Alder LakeCook County, MN

Contours load with map

Interactive depth contours10-foot typical interval · Official Minnesota DNR survey bathymetry · Not for navigation

Source: Minnesota DNRhigh confidence · QA passed · Select a contour to inspect its mapped depthOfficial Minnesota DNR lake survey: measured depth contours at a 10-ft interval (deepest mapped contour 70 ft), digitized by the DNR from field bathymetric surveys and reprojected to WGS84. Bathymetry © Minnesota DNR. Not for navigation.

Depth FAQ

How deep is Alder Lake?

Alder Lake is 72 feet deep at its deepest point, according to public agency records.

Is there a free depth map of Alder Lake?

Yes. LakeList publishes a free interactive depth contour map of Alder Lake at a typical 10-foot interval, with an optional 3D underwater view, derived from Minnesota DNR survey data.

Where does the Alder Lake depth map come from?

The interactive depth contours are derived from Minnesota DNR. Each contour set passes a visual QA review against the source document before it is published. The depths are from an official Minnesota DNR lake survey (measured bathymetric contours); not for navigation.

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