Welcome,
In Wisconsin as part of the approval, you need to get approval from the Corp of Army Engineers. If you ask, and if you are approved, they will send you a letter stating that you are exempt. DNR around here usually requests a copy before approving request. Michigan might be different but as stated earlier, double check before going too far.
Also, depending upon Michigan or your county's rules and regulations, you might need permission from Soil and Erosion or whatever it might be called. Green County had a 10 page document that needed to be filled out by person or company doing construction.
in wisconsin if you are moving dirt of more than 1 acre, more paperwork and possible inspection.
Good luck.
13 acres,
5 ponds 1 still working
FHM, Shiners, CC, SMB, WE, Yellow Perch
living the dream

Can't have everything...where would you put it?