MI · ranked by public data

Deepest Lakes in St. Clair County, Michigan, Ranked

0 St. Clair County lakes are at least 50 state-mapped acres with an IFR-surveyed depth, out of 7 documented lakes in the county.

No St. Clair County lakes currently are at least 50 state-mapped acres with an IFR-surveyed depth in our data. Browse the full St. Clair County lake index instead.

Methodology

How this list is built

Ranked by the deepest point recorded in Michigan DNR Institute for Fisheries Research (IFR) lake surveys — historical hand-drawn survey maps, largely mid-1900s, digitized by the DNR. Depths have not been re-confirmed by modern survey.
Only lakes with an IFR survey can rank; Michigan lakes without one are not listed rather than guessed at.
Lakes under 50 acres — or without a confidently matched Michigan DNR GIS lake polygon for acreage — are excluded from rankings.
Public access inventories are not yet tracked for Michigan, so access is never shown or ranked here.

Deepest lakes statewide Biggest lakes in St. Clair County All St. Clair County lakes

Source data: Michigan DNR Institute for Fisheries Research historical lake surveys (largely mid-1900s; depths not re-confirmed by modern survey) and Michigan DNR GIS lake polygons, as aggregated by LakeList.Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.