Alpena County lake maps & depth charts

Explore 5 lakes as 3D depth maps, built from Michigan DNR and NOAA bathymetric surveys — surveyed depth draped over real elevation and aerial imagery.

Largest first Deepest first A – Z Nearest first Filters

Thunder Bay

107 ft64,283 ac

Fletcher Pond

8 ft8,849 ac

Devils Lake

5 ft834 ac

Beaver Lake

70 ft680 ac

Ninth Street Pond

23 ft498 ac

Where the lakes are

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

Great Lakes bay

All 5 mapped waters in Alpena County; deepest is Thunder Bay at 107 ft. Tap a dot to open that lake.