U.P. TREE  IDENTIFICATION  KEY
from Michigan State University Extension

Picture Hint

  Coarse teeth about 1/4-inch apart,
  sharp points.                                             Beech

          or

  Blunt teeth, not obvious, may have a rusty
  color, especially late in the season.     Balm-of-Gilead

          or

  Leaf margins with fine, sharp teeth.  

You have selected a broad-leafed tree
with simple, unlobed, elliptical leaves
with single-toothed or
barely-toothed margins.