Most of Pennsylvania’s forest lands fall into two types:

• Mixed oak forests cover about 54 percent of the Commonwealth -- mostly in the south -- and include trees such as northern red oak, chestnut oak, shagbark hickory, red maple, and tulip poplar.
• Northern hardwoods cover about 32 percent of Pennsylvania, mostly in the high elevations of the north. Common trees include sugar maple, black cherry, aspen, birch, hemlock, and ash.