Michigan Lake Depths
Michigan · Iosco County

Iosco County lake maps & depth charts

Explore 19 lakes as 3D depth maps, built from Michigan DNR and NOAA bathymetric surveys — surveyed depth draped over real elevation and aerial imagery.

Featured depth maps

3D depth map of Tawas LakeLargest inland lakeTawas Lake4 ft deep · 1,541 acresExplore the 3D map 3D depth map of Loon LakeDeepest mapped contourLoon Lake128 ft deep · 407 acresExplore the 3D map 3D depth map of Van Etten LakeMost fish species surveyedVan Etten Lake22 fish species · 30 ft deep · 1,483 acresExplore the 3D map

Where the lakes are

Tawas Bay · 43 ft · 7,769 acTawas Lake · 4 ft · 1,541 acVan Etten Lake · 30 ft · 1,483 acLong Lake · 62 ft · 494 acLoon Lake · 128 ft · 407 acSand Lake · 25 ft · 261 acWest Londo Lake · 16 ft · 197 acLondo Lake · 5 ft · 197 acJose Lake · 25 ft · 128 acRound Lake · 15 ft · 90 acChain Lakes · 18 ft · 72 acLittle Island Lake · 9 ft · 56 acBass Lake · 22 ft · 51 acFloyd Lake · 15 ft · 39 acMarlbed Lake · 30 ft · 38 acWelcome Lake · 30 ft · 33 acHale Lake · 20 ft · 29 acRiver Lakes · 30 ft · 11 acSecord Lake · 42 ft · 9 acTawas BayTawas LakeVan Etten LakeLoon Lake

Dot size and shade follow max depth: under 15 ft 100 ft and deeper

Great Lakes bay

All 19 mapped waters in Iosco County; deepest is Loon Lake at 128 ft. Tap a dot to open that lake.