MI · ranked by public data
2 Ontonagon County lakes are at least 50 state-mapped acres with an IFR-surveyed depth, out of 61 documented lakes in the county.
Ontonagon County, MI
35 ft maximum depth · 50 acres
Ontonagon County, MI
15 ft maximum depth · 82 acres
Methodology
FAQ
Deadman Lake — Deadman Lake in Ontonagon County has the deepest recorded IFR survey point of any ranked Ontonagon County lake, at 35 feet — a historical DNR survey figure, not a modern re-survey.
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.