Wisconsin was richly endowed with forests and places of natural beauty. Except for a few comparatively small areas the entire area of the state was timber, - the upper twenty million acres with a forest in which the white pine predominated, but containing such trees as the hemlock, hard maple, basswood, birch and Norway pine. The southern fifteen million acres was a hardwood forest, in which the oaks formed 7597o of the entire stand, but which contained in commercial quantities such valuable species as black walnut, black cherry, basswood, hard maple and elm.
Harrington, C. L.
"Conservation Forest and State Parks,"
Ames Forester: Vol. 15
, Article 4.
Available at: https://lib.dr.iastate.edu/amesforester/vol15/iss1/4