Highlights. Extent of Wisconsin's forests ; Composition of Wisconsin's forests ; Causes of change in Wisconsin's forests ; Forest habitat types of Wisconsin -- Appendix. Accuracy of the survey. County data -- Comparing Wisconsin's fifth inventory with the fourth inventory -- Survey procedures. Major steps in the new survey design -- Habitat type classification of Wisconsin. Habitat type groups : north ; Habitat type groups : south ; Index of habitat type names -- Tree and log grades ; Metric equivalents -- Tree species groups in Wisconsin -- Definition of terms --Table titles -- Tables