Here is an index map of 20 major timber types in the United States as defined by the Society ... The tree type map is color-coded by each specific forest cover type and public lands are excluded.

A map published by Earth System Science Data ... particularly in the eastern states. By 1920, U.S. forest cover had reached its lowest point at approximately 721 million acres.

The maps allow us to see what the most forested places in the U.S. have in common. Zooming in on a few different examples, ...