MI · ranked by public data
3 Manistee County lakes are at least 50 state-mapped acres with an IFR-surveyed depth, out of 48 documented lakes in the county.
Manistee County, MI
60 ft maximum depth · 2,116 acres
Manistee County, MI
50 ft maximum depth · 168 acres
Manistee County, MI
9 ft maximum depth · 117 acres
Methodology
FAQ
Portage Lake — Portage Lake in Manistee County has the deepest recorded IFR survey point of any ranked Manistee County lake, at 60 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.