Region 9 Forest Complexity Matrix
| Allegheny (PA) | Moderate |
| Chequamegon/Nicolet (WI) | Moderate |
| Chippewa (MN) | High |
| Green Mountain (VT) | Moderate |
| Hiawatha (MI) | Moderate |
| Hoosier (IN) | Moderate |
| Huron-Manistee (MI) | High |
| Mark Twain (MO) | High |
| Midewin National Tall Grass Prairie (IL) | Low |
| Monongahela (WV) | Moderate |
| Ottawa (MI) | Low |
| Shawnee (IL) | Moderate |
| Superior (MN) | High |
| Wayne (OH) | Moderate |
| White Mountain (NH) | Moderate |