The Department of Natural Resources (DNR) has been actively discouraging rock stacking in Michigan's state parks. This is not merely an aesthetic issue; it has serious ecological consequences.
An invasive alga known as didymo, or "rock snot," was discovered in Michigan's Au Sable River, raising concerns with environmentalists and the local fishing community.
Can life at Lake Superiors deepest depths? Yes. Read what three species eek out a life 1,320 feet below the surface of Michigan's and the world's largest lake.