Most lakes in Michigan

Robert Brown Sanctuary

How lakes form

Photo by Daniel Kerr.Photo courtesy of the Geological Survey of Canada, Canadian Government.

Kettle Lakes at Twin Lakes, SW of Houghton. Most lakes on the Keweenaw and most of Michigan are kettles.

Day 3    Land Surface     Water Quality   Healthy Watersheds Global Climate Changes  Carbon Dioxide  Erosion, Weathering, Biodiversity     Baltic Mine   Kettle Lakes  Caledonia Mine